WO2018101379A1 - Packing bag with attached rfid tag, system for managing opening of packing bag, paste sheet with attached rfid tag, and system for managing opening of container to which paste sheet is pasted - Google Patents

Abstract

This packing bag with attached RFID tag is provided with: a bag-shaped body formed by sealing peripheral portions of sheet-shaped members that face each other, the body having an accommodation region for accommodating contents therein, and having a cutting side at one side thereof; and an RFID tag disposed in the body and having an antenna pattern and an RFIC element. The body has a cutting region for cutting the accommodation region, wherein the cutting region is interposed between a first region line and a second region line which are virtual lines extending in a direction crossing the cutting side. The antenna pattern of the RFID tag includes a first antenna element extending from the RFIC element to the first region line via the second region line, and a second antenna element extending from the RFIC element to the second region line via the first region line, and constitutes a dipole-type antenna pattern.

Description

RFID tag packaging bag, packaging bag opening management system, RFID tag sticking sheet and container opening sticking management system

The present invention relates to a packaging bag with an RFID tag (Radio Frequency Identification), an opening management system for the packaging bag, and an opening management system for an RFID tag attached sheet and a container to which the attached sheet is attached.

2. Description of the Related Art In recent years, RFID information systems that communicate predetermined information using an electromagnetic field between an RFID tag attached to an article and a reader / writer and transmit predetermined information have been used as article information management systems. The RFID tag includes an RFIC element that stores predetermined information and processes an RF signal, and an antenna element that performs transmission and reception. Various configurations have been disclosed as such RFID tags (see, for example, Patent Document 1).

The RFID tag in Patent Document 1 is provided to confirm opening of a medicine package containing medicine. As a specific configuration, an antenna pattern for the RFID tag is formed so as to straddle a predetermined cutting line extending in the width direction of the medicine package body. When cutting along the cutting line, the antenna pattern is disconnected, and the RFID tag cannot be read by the reader / writer.

International Publication No. 2005/026014

However, in the configuration as in Patent Document 1, it is necessary to cut along a predetermined cutting line in order to cut the medicine package. Therefore, depending on the cut location, the antenna pattern may not be cut, and it may not be possible to confirm the opening of the medicine package. Thus, it can be said that there is still room for improvement with respect to accurately performing the opening confirmation when performing the opening confirmation of a packaging bag such as a medicine package.

Similarly, it is desirable to develop an adhesive sheet or the like that can accurately perform the opening confirmation when an adhesive sheet is attached to an opening of a container such as cardboard and the opening confirmation is performed using the adhesive sheet.

Therefore, an object of the present invention is to provide a packaging bag, a sticking sheet, and an opening management system that can perform the opening confirmation with high accuracy in solving the above-described problems.

In order to achieve the above object, a packaging bag with an RFID tag according to the present invention is a bag-shaped main body formed by sealing peripheral portions of sheet-like members facing each other, and contains contents inside. A main body having a cut edge on one side thereof, and an RFID tag having an RFIC element and an antenna pattern provided on the main body, and the main body is an area for cutting the storage area. A cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge, and the antenna pattern of the RFID tag is formed from the RFIC element to the first region line. A first antenna element that reaches the first area line via a two-area line; and the second area label that passes from the RFIC element via the first area line. And a second antenna element leading to emission, constituting the dipole antenna pattern.

The opening management system of the present invention is an opening management system comprising a plurality of packaging bags with RFID tags and a reader / writer that communicates with the RFID tags of the packaging bags with RFID tags via an electromagnetic field. Each of the RFID tag-equipped packaging bags is a bag-shaped main body formed by sealing the peripheral portions of the sheet-like members facing each other, and has a cut edge on one side and the contents. A main body having an accommodating area for accommodating, and an RFID tag provided on the main body and having an RFIC element and an antenna pattern, wherein the main body is an area for cutting the accommodating area, and the cut surface An antenna pattern of the RFID tag having a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the side; Includes a first antenna element extending from the RFIC element to the first area line via the second area line, and reaching the second area line from the RFIC element via the first area line. A communication step that includes a second antenna element, configures a dipole antenna pattern, communicates each of the RFIC elements of the plurality of packaging bags with RFID tags, and the reader / writer, and a communication result of the communication step Based on the above, it is determined whether or not the plurality of packaging bags with RFID tags include the RFID tag packaging bags that have been opened by cutting the antenna pattern of the RFID tags in the cutting region. In the determination step and the determination step, the R that has been opened in the plurality of RFID-tagged packaging bags If it is determined that the ID tag packaging bag is included, by executing a notification step of notifying the user, manages the opening of the plurality of RFID tags packaging bag.

Further, the RFID tag-attached sheet of the present invention is a sheet-like main body to be attached to an opening location of a container, and a main body having two opposite sides as cut sides, an RFIC element provided on the main body, and An RFID tag having an antenna pattern, and the main body has a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge, and the RFID The antenna pattern of the tag includes a first antenna element that extends from the RFIC element to the first area line via the second area line, and a second antenna element that extends from the RFIC element via the first area line. A second antenna element that reaches the area line, and forms a dipole antenna pattern.

The opening management system of the present invention is an opening management system comprising a plurality of RFID tag-attached sheets and a reader / writer that communicates with the RFID tags of the RFID tag-attached sheets via an electromagnetic field. Each of the RFID tag-attached sheets is a sheet-like main body to be attached to an opening of the container, the main body having two opposite sides as cut sides, and the RFIC. An RFID tag having an element and an antenna pattern, and the main body has a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge, The antenna pattern of the RFID tag is a first antenna that extends from the RFIC element to the first region line via the second region line. A plurality of the RFID tag-attached sheets having an element and a second antenna element extending from the RFIC element via the first area line to the second area line, forming a dipole antenna pattern The RFIC element of each of the communication step of communicating the reader / writer, and the communication pattern of the communication step, based on the communication result of the communication step, the antenna pattern of the RFID tag A determination step of determining whether or not an adhesive sheet with an RFID tag that has been cut and opened at a cutting region is included, and an RFID tag that has been opened in the plurality of adhesive sheets with an RFID tag in the determination step; A notification to notify the user when it is determined that an attached sheet is included. By executing the steps to manage the opening of the container.

According to the packaging bag with an RFID tag and the opening management system of the present invention, and the opening management system for the container with the RFID tag attached sheet and the attached sheet attached thereto, the opening confirmation can be realized with high accuracy.

Schematic plan view of a packaging bag with an RFID tag according to Embodiment 1 Schematic plan view of RFID tag Schematic diagram of opening management system (all packaging bags are not opened) Schematic diagram of opening management system (one packaging bag opened) Flow diagram showing the opening management process Schematic plan view of a packaging bag with an RFID tag (not opened) in Comparative Example 1 Schematic plan view of a packaging bag with an RFID tag (opened) in Comparative Example 1 Schematic plan view of a packaging bag with an RFID tag (not opened) in Comparative Example 2 Schematic plan view of a packaging bag with an RFID tag (opened) in Comparative Example 2 The figure which shows the equivalent circuit of the RFID tag RFIC element perspective view Sectional view of the RFIC element shown in FIG. Plan view of the upper insulating layer in the RFIC element configured as a multilayer substrate Plan view of central insulating layer in RFIC element Plan view of lower insulating layer in RFIC element Sectional view of the upper insulating layer along the line B1-B1 shown in FIG. 10A Sectional view of the central insulating layer along the line B2-B2 shown in FIG. 10B Sectional view of the lower insulating layer along line B3-B3 shown in FIG. 10C Schematic plan view of a packaging bag with an RFID tag according to Embodiment 2 Schematic plan view of a packaging bag with an RFID tag according to Embodiment 3 Schematic plan view of a packaging bag with an RFID tag according to Embodiment 4 Schematic plan view of a packaging bag with an RFID tag in a fifth embodiment Schematic plan view of a packaging bag with an RFID tag in a modified example Plan view of an RFID tag-attached sheet according to Embodiment 6 Side view of an RFID tag-attached sheet according to Embodiment 6 The perspective view which shows the usage example of the adhesive sheet with an RFID tag in Embodiment 6 (before opening) The perspective view which shows the usage example of the adhesive sheet with an RFID tag in Embodiment 6 (after opening)

According to the first aspect of the present invention, the bag-shaped main body is formed by sealing the peripheral portions of the sheet-like members facing each other, and has a storage area for storing contents inside, A main body having a cut edge on one side thereof, and an RFID tag having an RFIC element and an antenna pattern provided on the main body, the main body being an area for cutting the accommodation area and intersecting the cut edge A cutting region sandwiched between a first region line and a second region line, which are virtual lines extending in a direction, and the antenna pattern of the RFID tag passes through the second region line from the RFIC element. A first antenna element that reaches the first area line; and a second antenna element that extends from the RFIC element to the second area line via the first area line. It has, constitutes a dipole antenna pattern, to provide an RFID-tagged packaging bag. According to such a structure, the opening confirmation of a packaging bag can be implemented accurately.

According to a second aspect of the present invention, there is provided the packaging bag with an RFID tag according to the first aspect, wherein the RFIC element is packaged together with a resonance circuit having a resonance frequency corresponding to the carrier frequency. According to such a configuration, a compact configuration can be achieved while improving communication accuracy.

According to the third aspect of the present invention, the first antenna element has an extending portion extending in a direction away from the cut edge outside the cutting region than the first region line, and the second antenna element includes the second region line. A packaging bag with an RFID tag according to the first aspect or the second aspect, which has an extending portion extending in a direction away from the cut edge outside the cutting region. According to such a configuration, the overall length of the antenna pattern can be set long.

According to a fourth aspect of the present invention, the first antenna element is connected to the RFIC element and extends along the direction in which the cut edge extends so as to straddle the second region line; A second extension part connected to the first extension part and extending in a direction away from the cut edge; a second extension line connected to the second extension part and extending in the cut edge side; and A third extending portion extending so as to straddle one region line, and the second antenna element is connected to the RFIC element and straddles the first region line along a direction in which the cut edge extends. A first extending portion extending, a second extending portion connected to the first extending portion and extending in a direction approaching the cut edge, and connected to the second extending portion and the cut edge A packaging bag with an RFID tag according to any one of the first to third aspects, comprising a third extending portion extending so as to straddle the first area line and the second area line along the extending direction. To do. According to such a structure, the opening confirmation of a packaging bag can be implemented more accurately.

According to a fifth aspect of the present invention, there is provided the packaging bag with an RFID tag according to any one of the first aspect to the fourth aspect, wherein the RFID tag is directly provided on the surface of the main body. According to such a structure, it can be set as a simple structure compared with the case where an RFID tag is provided in the surface of a main body through a base material etc., for example.

According to a sixth aspect of the present invention, there is provided an unsealing management system comprising: a plurality of packaging bags with RFID tags; and a reader / writer that communicates with the RFID tags of the packaging bags with RFID tags via an electromagnetic field. Each of the RFID tag-equipped packaging bags is a bag-shaped main body formed by sealing the peripheral portions of the sheet-like members facing each other, and has a cut edge on one side and the contents. A main body having an accommodating area for accommodating, and an RFID tag provided on the main body and having an RFIC element and an antenna pattern, wherein the main body is an area for cutting the accommodating area, and the cut surface A cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the side, and the antenna pattern of the RFID tag A first antenna element extending from the RFIC element to the first area line via the second area line, and a second antenna extending from the RFIC element to the second area line via the first area line A communication step of communicating the reader / writer with each of the RFIC elements of each of the plurality of packaging bags with RFID tags, and a communication result of the communication step. A determination step for determining whether or not an unsealed packaging bag with an RFID tag was included in the plurality of packaging bags with an RFID tag; and in the determination step, the plurality of packaging bags with an RFID tag In the RFID tag, the antenna pattern of the RFID tag is cut at the cutting area and opened. If it is determined that the attached packaging bag is included, by executing a notification step of notifying the user, manages the opening of the plurality of RFID tags packaging bag, providing opening control system. According to such an opening management system, the opening confirmation of the packaging bag can be performed with high accuracy.

According to the seventh aspect of the present invention, a sheet-like main body that is affixed to an opening location of a container, the main body having two opposite sides as cut sides, the RFIC element and the antenna pattern provided on the main body The main body has a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge, and the RFID tag The antenna pattern includes a first antenna element that extends from the RFIC element to the first area line via the second area line, and a second area line that extends from the RFIC element via the first area line. A sticking sheet with an RFID tag is provided, which has a second antenna element extending to the top and forms a dipole antenna pattern. According to such a structure, the opening confirmation of a container can be implemented accurately.

According to an eighth aspect of the present invention, there is provided the adhesive sheet with an RFID tag according to the seventh aspect, wherein the RFIC element is packaged together with a resonance circuit having a resonance frequency corresponding to a carrier frequency. According to such a configuration, a compact configuration can be achieved while improving communication accuracy.

According to a ninth aspect of the present invention, the first antenna element has an extending portion that extends in a direction away from the cut edge outside the cutting region with respect to the first region line, and the second antenna element is The RFID tag-attached sheet according to the seventh aspect or the eighth aspect, which has an extending portion extending in a direction away from the cut edge outside the cutting area with respect to the second area line, is provided. According to such a configuration, the overall length of the antenna pattern can be set long.

According to a tenth aspect of the present invention, the first antenna element is connected to the RFIC element and extends along the second region line along a direction in which the cut edge extends. A second extension part connected to the first extension part and extending in a direction away from the cut edge; a second extension line connected to the second extension part and extending in the cut edge side; and A third extending portion extending so as to straddle one region line, and the second antenna element is connected to the RFIC element and straddles the first region line along a direction in which the cut edge extends. A first extending portion extending, a second extending portion connected to the first extending portion and extending in a direction approaching the cut edge, and connected to the second extending portion and the cut The RFID tag-attached sheet according to any one of the seventh aspect to the ninth aspect, comprising a third extending portion extending so as to straddle the first area line and the second area line along a direction in which the first area line extends. provide. According to such a configuration, the container opening confirmation can be performed with higher accuracy.

According to an eleventh aspect of the present invention, there is provided the RFID tag-attached sheet according to any one of the seventh to tenth aspects, wherein the RFID tag is directly provided on the surface of the main body. According to such a structure, it can be set as a simple structure compared with the case where an RFID tag is provided in the surface of a main body through a base material etc., for example.

According to a twelfth aspect of the present invention, there is provided an unsealing management system comprising: a plurality of adhesive sheets with RFID tags; and a reader / writer that communicates with the RFID tags of the adhesive sheets with RFID tags via an electromagnetic field. Each of the RFID tag-attached sheets is a sheet-like main body to be attached to an opening of the container, the main body having two opposite sides as cut sides, and the RFIC. An RFID tag having an element and an antenna pattern, and the main body has a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge, The antenna pattern of the RFID tag is a first antenna element that extends from the RFIC element to the first area line via the second area line. And a second antenna element extending from the RFIC element via the first area line to the second area line, forming a dipole antenna pattern, and the plurality of the RFID tag-attached sheets with RFID tags The RFIC element of each of the communication step of communicating the reader / writer, and the communication pattern of the communication step, based on the communication result of the communication step, the antenna pattern of the RFID tag A determination step of determining whether or not an adhesive sheet with an RFID tag that has been cut and opened at a cutting region is included, and an RFID tag that has been opened in the plurality of adhesive sheets with an RFID tag in the determination step; A notification step to notify the user when it is determined that the attached sticky sheet was included. By executing the flop, manages the opening of the container, providing opening control system. According to such an opening management system, it is possible to accurately check the opening of the container.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
1 and 2 are diagrams showing a schematic configuration of a packaging bag 2 with an RFID tag 6 in the first embodiment. FIG. 1 is a schematic plan view showing the packaging bag 2, and FIG. 2 is a schematic plan view showing the RFID tag 6 of the packaging bag 2.

The packaging bag 2 is a bag for storing predetermined contents. The packaging bag 2 in the first embodiment is a medicine package that contains the medicine 3.

The packaging bag 2 includes a main body 4, a base material 5, and an RFID tag 6.

The main body 4 is a bag-like member in which the peripheral portions of two opposing sheet-like members are sealed. The medicine 3 is accommodated inside the main body 4. Sealing portions 17 are formed on the four sides that are peripheral portions of the main body 4. In FIG. 1, the area | region of the sealing part 17 is shown with the dotted line.

The main body 4 in the first embodiment is formed in a substantially rectangular shape in plan view. One side of the main body 4, the upper side in the first embodiment, is provided as a cut side 16 for opening the main body 4. The material of the main body 4 may be any material that can be cut from the cut edge 16, and paper is used in the first embodiment. In addition, in order to prevent cutting from a side other than the cut side 16, the cut side 16 and the side other than the cut side 16 may be made of different materials.

In the following description, the direction in which the cut edge 16 extends (the width direction and the short direction of the main body 4) is referred to as the A direction, and the direction perpendicular to the cut edge 16 (the length direction and the long direction in the main body 4) is referred to as the B direction. . Both the A direction and the B direction are parallel to the surface of the main body 4 and orthogonal to each other.

In the main body 4, a region excluding the sealing portion 17, that is, a region inside the sealing portion 17 is a storage region P <b> 1 for storing the medicine 3. The accommodation area P <b> 1 in plan view is formed in a rectangular shape that is slightly smaller than the rectangular main body 4.

The base material 5 is a sheet-like base material that is attached to the accommodation region P1 on the surface of the main body 4. An RFID tag 6 is formed on the base material 5, and the RFID tag 6 is provided in the storage area P1 by arranging the base material 5 in the storage area P1. Similarly to the main body 4, the base material 5 may be formed of any material as long as it is a cutable and insulating material. In the first embodiment, paper is used.

The RFID tag 6 is a tag for identifying an article such as the packaging bag 2, and is a wireless IC device that is used by being attached to the article. In the first embodiment, the RFID tag 6 is used by being attached to the accommodation region P <b> 1 on the surface of the main body 4 through the base material 5. The RFID tag 6 communicates with a predetermined reader / writer (not shown) in a non-contact manner using an electromagnetic field, and can communicate article identification information and the like with the reader / writer. The RFID tag 6 according to the first embodiment is a UHF band tag that uses the UHF band as a communication frequency band.

As shown in FIG. 1, the RFID tag 6 includes an RFIC (Radio Frequency Integrated Circuit) element 8 and an antenna pattern 10.

The RFIC element 8 is a module that incorporates identification information of the packaging bag 2 that is an article and communicates with the reader / writer regarding the identification information. The RFIC element 8 in the first embodiment is provided at the center position in the A direction in the main body 4. The RFIC element 8 is provided with a first terminal electrode 102 and a second terminal electrode 104 in order to be electrically connected to the antenna pattern 10. The detailed configuration of the RFIC element 8 will be described later.

The antenna pattern 10 is a linear conductive member that functions as a booster (amplifier) when the RFIC element 8 communicates with the reader / writer. By disposing the conductive antenna pattern 10 around the RFIC element 8, the RFIC element 8 and the reader / writer can communicate with each other while the antenna pattern 10 functions as a booster.

In Embodiment 1, conductive ink is used as the material of the antenna pattern 10. The material is not limited to such a material, and any material may be used as long as it is a conductive material. For example, when the substrate 5 is a transparent substrate, the antenna pattern 10 may be formed of a transparent electrode.

The antenna pattern 10 in the first embodiment is a so-called dipole antenna pattern. The antenna pattern 10 includes a first antenna element 12 and a second antenna element 14 as two antenna elements. Both the first antenna element 12 and the second antenna element 14 are conductive inks electrically connected to the RFIC element 8 and extend from the RFIC element 8 in different directions.

As shown in FIG. 1, a predetermined cutting area P <b> 2 is set inside the housing area P <b> 1 in the main body 4. The cutting area P <b> 2 is a virtual area defined as a cutting line range for cutting the main body 4. A predetermined mark may be provided on the main body 4 so as to cut within the cutting region P2 at the cut edge 16.

1 is divided by two lines, a first region line 20 and a second region line 22 that extend in parallel to each other. The first region line 20 and the second region line 22 are virtual lines extending in the direction (B direction) intersecting the direction (A direction) in which the cut edge 16 extends.

In such a configuration, the first antenna element 12 extends over both the first region line 20 and the second region line 22, and the second antenna element 14 also includes the first region line 20 and the second region line. 22 extends over both. In the periphery of the RFIC element 8, the first antenna element 12 and the second antenna element 14 constitute an S-shaped conductive line.

According to such a configuration, when the user cuts the main body 4 from the cut edge 16 within the cutting region P2, both the first antenna element 12 and the second antenna element 14 are cut. Thereby, the total length of both the first antenna element 12 and the second antenna element 14 in the dipole antenna pattern 10 is shortened. For this reason, the communicable distance by the reader / writer is remarkably shortened, and communication is substantially impossible. Thereby, the reader / writer is brought close to confirm whether communication with the RFID tag 6 is possible, so that the opening confirmation of the packaging bag 2 can be accurately performed.

Next, the shape of the antenna pattern 10 will be described in detail with reference to FIG.

As shown in FIG. 2, the first antenna element 12 of the antenna pattern 10 includes a first extending portion 12a, a second extending portion 12b, a third extending portion 12c, a fourth extending portion 12d, and a fifth extending portion. 12e, a sixth extending portion 12f, a seventh extending portion 12g, and an eighth extending portion 12h.

The first extending portion 12 a is connected to the first terminal electrode 102 of the RFIC element 8 and extends from the RFIC element 8 along the A direction. At this time, the first extending portion 12 a straddles the second region line 22. The second extending portion 12 b is connected to the first extending portion 12 a and extends along the B direction in a direction away from the cut edge 16. The third extending portion 12c is connected to the second extending portion 12b and extends along the A direction. At this time, the third extending portion 12 c straddles both the second region line 22 and the first region line 20. Thereby, the 3rd extending part 12c crosses cutting field P2.

The fourth extending portion 12d is connected to the third extending portion 12c and extends along the B direction in a direction approaching the cut edge 16. The fifth extending portion 12e is connected to the fourth extending portion 12d and extends along the A direction. The sixth extending portion 12 f is connected to the fifth extending portion 12 e and extends along the B direction in a direction away from the cut edge 16. The seventh extending portion 12g is connected to the sixth extending portion 12f and extends along the A direction. The eighth extending portion 12h is connected to the seventh extending portion 12g and extends along the B direction in a direction approaching the cut edge 16.

According to such a configuration, the first antenna element 12 extends from the RFIC element 8 to the first region line 20 via the second region line 22. As a result, when the user cuts the main body 4 from the cut edge 16 so as to cross the cutting region P2, at least one portion (third extending portion 12c) of the first antenna element 12 is surely cut. Depending on the cutting location, in addition to the third extending portion 12c, the first extending portion 12a is also cut.

Next, the second antenna element 14 includes a first extending portion 14a, a second extending portion 14b, a third extending portion 14c, a fourth extending portion 14d, a fifth extending portion 14e, and a sixth extending portion 14f. With.

The first extending portion 14a is connected to the second terminal electrode 104 of the RFIC element 8 and from the RFIC element 8 in the B direction toward the opposite direction to the first extending portion 12a of the first antenna element 12 described above. Extend along. At this time, the first extending portion 14 a straddles the first region line 20. The second extending portion 14 b is connected to the first extending portion 14 a and extends along the B direction in a direction approaching the cut edge 16. The third extending portion 14c is connected to the second extending portion 14b and extends along the A direction. At this time, the third extending portion 14 c straddles both the first region line 20 and the second region line 22.

The fourth extending portion 14d is connected to the third extending portion 14c and extends along the B direction in a direction away from the cut edge 16. The fifth extending portion 14e is connected to the fourth extending portion 14d and extends along the A direction. At this time, the fifth extending portion 14 e straddles the second region line 22. The sixth extending portion 14 f is connected to the fifth extending portion 14 e and extends along the B direction in a direction approaching the cut edge 16.

According to such a configuration, the second antenna element 14 extends from the RFIC element 8 to the second region line 22 via the first region line 20. Thereby, when the user cuts the main body 4 so as to cross the cutting area P2 from the cut edge 16, at least one portion (third extending portion 14c) of the second antenna element 14 is surely cut. Depending on the cutting location, in addition to the third extending portion 14c, the first extending portion 14a and the like are also cut.

As described above, the antenna pattern 10 of the first embodiment forms an S-shaped line around the RFIC element 8, and the first pattern when the user cuts the main body 4 from the cut edge 16 within the cutting region P2. Both the antenna element 12 and the second antenna element 14 are configured to be disconnected. Thereby, since the length of both the 1st antenna element 12 and the 2nd antenna element 14 becomes short, the communicable distance by a reader / writer becomes remarkably short, and it becomes impossible to communicate substantially. In other words, the electrical length of the antenna pattern 10 is greatly reduced, and the active portion as the radiator is greatly reduced, so that the gain change is increased. Accordingly, the reader / writer is brought close to confirm whether there is communication with the RFID tag 6, so that it can be confirmed that it is unopened if it can communicate with the RFID tag 6 and has been opened if it cannot communicate with the RFID tag 6. The opening confirmation of the packaging bag 2 can be carried out with high accuracy.

Note that the portions of the first antenna element 12 ahead of the third extending portion 12c (the fourth extending portion 12d, the fifth extending portion 12e, the sixth extending portion 12f, the seventh extending portion 12g, and the eighth extending portion 12h) The shape is determined according to desired communication characteristics required for the RFID tag 6. By setting the length of these portions long, the overall length of the first antenna element 12 is set to be long. Therefore, when the third extending portion 12c is cut in the cutting region P2, the portion that remains as the active portion The length can be shortened (for example, it can be shortened by more than half). In particular, in the first embodiment, the entire length of the first antenna element 12 is set longer by providing the sixth extending portion 12f extending in the direction away from the cut edge 16 outside the cutting region P2 than the first region line 20. can do.

The same applies to the second antenna element 14.

As described above, the packaging bag 2 according to the first embodiment includes the main body 4 and the RFID tag 6, and the RFID tag 6 includes the RFIC element 8 and the antenna pattern 10. The antenna pattern 10 includes a first antenna element 12 and a second antenna element 14 to form a dipole antenna. The first antenna element 12 extends from the RFIC element 8 to the first region line 20 via the second region line 22. On the other hand, the second antenna element 14 extends from the RFIC element 8 to the second region line 22 via the first region line 20.

According to such a configuration, opening confirmation of the packaging bag 2 can be performed with high accuracy by performing communication confirmation by bringing the reader / writer closer to the RFID tag 6.

Further, according to the packaging bag 2 of the first embodiment, the conductive linear portion constituting the antenna pattern 10 extends along either the A direction or the B direction. Thereby, the antenna pattern 10 can be realized with a simple configuration. In particular, the first extending portion 12a and the third extending portion 12c of the first antenna element 12 and the first extending portion 14a and the third extending portion 14c of the second antenna element 14 constituting the S-shaped conductive line in the antenna pattern 10. Both extend along the cut edge 16 (direction A). Thereby, the antenna pattern 10 can be realized with a simple configuration.

Further, according to the packaging bag 2 of the first embodiment, the RFIC element 8 is provided at the center position in the A direction in the main body 4. Thereby, when the main body 4 is cut in the cutting area P2, the lengths of the first antenna element 12 and the second antenna element 14 can be shortened in a balanced manner, so that the opening confirmation of the packaging bag 2 can be confirmed with higher accuracy. Can be implemented.

<Opening management system>
Next, an opening management system for managing the opening of the packaging bag 2 using the packaging bag 2 with the RFID tag 6 having the above-described configuration will be described.

3A and 3B show an example of the opening management system 220. FIG. The opening management system 220 includes a plurality of packaging bags 2 and a reader / writer 222. In the example of FIGS. 3A and 3B, a plurality of packaging bags 2 are provided in a row.

3A shows a state in which all the packaging bags 2 are unopened, and FIG. 3B shows a state in which one packaging bag 2a is cut along the cutting line 224 and has been opened.

In this configuration, the opening management process performed along the flowchart of FIG. 4 will be described.

As shown in FIG. 4, first, a first communication step is performed (step S1). Specifically, as shown in FIG. 3A, scanning is performed with the reader / writer 222 approaching the plurality of packaging bags 2 in a state where all the packaging bags 2 are unopened (see arrows). When the reader / writer 222 continuously communicates with the RFID tag 6 of each packaging bag 2, identification information of the packaging bag 2 is transmitted from the RFIC element 8 of the RFID tag 6 to the reader / writer 222. In the case illustrated in FIG. 3A, the reader / writer 222 acquires identification information of all the packaging bags 2. The communication result is stored in the reader / writer 222.

Next, a second communication step is performed (step S2). Specifically, after one (or a plurality of) packaging bags 2 are opened after step S1, the reader / writer 222 is moved closer to the plurality of packaging bags 2 and scanned. In the example shown in FIG. 3B, one packaging bag 2a at the left end is opened. When the packaging bag 2a is opened, communication with the reader / writer 222 becomes substantially impossible as described above. Therefore, when the reader / writer 222 is brought close to each packaging bag 2, it communicates with the RFID tag 6 of the packaging bag 2 excluding the opened packaging bag 2 a and acquires the identification information of the packaging bag 2 that can communicate. The communication result is stored in the reader / writer 222.

Next, a determination step is performed (step S3). Specifically, it is determined whether there is an opened packaging bag 2 by comparing the communication results of step S1 and step S2. In this example, the identification information of the packaging bag 2a acquired in step S1 is not included in the identification information acquired in step S2. Based on this, it can be determined that the packaging bag 2a has been opened.

Next, a notification step is performed (step S4). Specifically, the determination result in step S3 is notified to the user. Note that the notification method to the user (such as a doctor or nurse) may be any method such as displaying on a screen. By receiving the notification, the user can confirm and manage whether or not the packaging bag 2 has been opened. In this example, it can be confirmed that one packaging bag 2a has been opened.

In the above method, the case where the two communication steps of the first communication step S1 and the second communication step S2 are performed and the communication results of the two are compared has been described. However, the present invention is not limited to such a case. For example, the identification information of the plurality of packaging bags 2 is stored in advance, the first communication step S1 is omitted, and the communication result of the second communication step S2 is compared with the previously stored identification information. Also good. Even in such a case, opening confirmation of the packaging bag 2 can be performed.

The opening management system 220 described above includes a plurality of packaging bags 2 and a reader / writer 222. In such a configuration, the opening of the plurality of packaging bags 2 can be managed by executing at least the second communication step S2, the determination step S3, and the notification step S4. According to such an opening management system 220, the opening management of the packaging bag 2 can be accurately performed by using the packaging bag 2 with the RFID tag 6 described above.

Next, Comparative Examples 1 and 2 of Embodiment 1 will be described with reference to FIGS. 5A, 5B, 6A, and 6B.

(Comparative Example 1)
5A and 5B are plan views showing a packaging bag 30 according to Comparative Example 1. FIG. In the subsequent drawings, illustration of the lower side of the packaging bag is omitted.

As shown in FIG. 5A, the packaging bag 30 according to the comparative example 1 is different from the packaging bag 2 of the first embodiment in the shapes of the first antenna element 32 and the second antenna element 34 that constitute the dipole antenna pattern. Yes.

The first antenna element 32 includes a first extending portion 32a, a second extending portion 32b, a third extending portion 32c, and a fourth extending portion 32d. About the direction where these are extended, since it is the same as that of Embodiment 1, description is abbreviate | omitted.

The second antenna element 34 includes a first extending portion 34a, a second extending portion 34b, a third extending portion 34c, and a fourth extending portion 34d. With such a configuration, the second antenna element 34 has a shape symmetrical with the first antenna element 32 with the center line 37 as the center. The center line 37 is a line that passes through the RFIC element 8 and extends in the B direction.

The first antenna element 32 extends only to the left region of the RFIC element 8 with the center line 37 as the center, and the second antenna element 34 extends only to the right region of the RFIC element 8 with the center line 37 as the center. is doing.

According to such a configuration, as shown in FIG. 5B, when the main body 4 is cut from the cut edge 16, only the first antenna element 32 or the second antenna element 34 is cut. For example, when cutting along the cutting line 36 on the left side of the RFIC element 8, only the first antenna element 32 is cut. When the cutting line 38 on the right side of the RFIC element 8 is cut, only the second antenna element 34 is cut.

For this reason, even when the line is cut at any of the cutting lines 36 and 38, an active antenna element that is not cut off in the antenna pattern remains, and communication with the reader / writer may not be substantially impossible.

(Comparative Example 2)
6A and 6B are plan views showing a packaging bag 40 according to Comparative Example 2. FIG.

As shown in FIG. 6A, the packaging bag 40 according to Comparative Example 2 is similar to Comparative Example 1 in that the shapes of the first antenna element 42 and the second antenna element 44 constituting the dipole antenna pattern are the same as those in the first embodiment. The packaging bag 2 is different.

The first antenna element 42 includes a first extending portion 42a, a second extending portion 42b, and a third extending portion 42c.

The second antenna element 44 includes a first extending portion 44a, a second extending portion 44b, and a third extending portion 44c. With such a configuration, the second antenna element 44 has a shape symmetrical with the first antenna element 42 about the center line 45. The center line 45 is a line that passes through the RFIC element 8 and extends in the A direction.

Thus, the first antenna element 42 and the second antenna element 44 both extend from the right side to the left side starting from the RFIC element 8. That is, no S-shaped line is formed.

According to such a configuration, as shown in FIG. 6B, when the main body 4 is cut from the cut edge 16, unlike the first comparative example, both the first antenna element 42 and the second antenna element 44 are cut. The Rukoto. However, when the cutting line 46 on the right side is cut, the entire lengths of the first antenna element 42 and the second antenna element 44 are significantly shortened. Not too short. Therefore, in particular, when the cutting is performed on the left cutting line 48, the total length of each antenna element 42, 44 in the antenna pattern is not so short, and communication with the reader / writer may not be substantially impossible. .

In contrast to the first and second comparative examples, in the packaging bag 2 of the first embodiment, the antenna pattern 10 forms an S-shaped line starting from the RFIC element 8 and crosses the cutting region P2. If it is a cutting line, both antenna elements 12 and 14 are cut. As a result, the overall length of the antenna elements 12 and 14 can also be shortened with good balance, and communication with the reader / writer becomes virtually impossible. Therefore, opening confirmation of the packaging bag 2 can be implemented with high accuracy.

Next, the RFIC element 8 used for the packaging bag 2 of Embodiment 1 will be described with reference to FIGS.

The RFIC element 8 shown in FIG. 7 is an RFIC element corresponding to a communication frequency of, for example, 900 MHz band, that is, UHF band. The RFIC element 8 includes an RFIC chip 106 and a matching circuit 108. The matching circuit 108 is a circuit for achieving impedance matching between the RFIC chip 106 and the antenna pattern 10.

The RFIC chip 106 includes a first input terminal 106a and a second input terminal 106b. The first input terminal 106 a is connected to the first antenna element 12 via the matching circuit 108. The second input terminal 106 b is connected to the second antenna element 14 via the matching circuit 108.

When the first antenna element 12 and the second antenna element 14 that function as antennas receive a high-frequency signal from the outside, the RFIC chip 106 is activated by receiving a current induced by the reception. The activated RFIC chip 106 generates a high-frequency signal and outputs the generated signal to the outside as a radio wave via the first antenna element 12 and the second antenna element 14.

From here, the specific configuration of the RFIC element 8 will be described.

FIG. 8 is a perspective view of the RFIC element 8. In the case of the first embodiment, the RFIC element 8 includes a multilayer substrate 120 as an element substrate on which the RFIC chip 106 and the matching circuit 108 are provided. The multilayer substrate 120 is configured by stacking a plurality of insulating layers having flexibility. The plurality of insulating layers are, for example, flexible resin insulating layers such as polyimide and liquid crystal polymer.

FIG. 9 is a cross-sectional view of the RFIC element 8 shown in FIG. From here, description will be made assuming that the side on which the first terminal electrode 102 and the second terminal electrode 104 are provided is the upper side of the RFIC element 8.

FIG. 10A is a top view of the upper insulating layer of the multilayer substrate 120. FIG. 10B is a top view of the insulating layer at the center of the multilayer substrate 120. FIG. 10C is a top view of the lower insulating layer of the multilayer substrate 120. FIG. 11A is a cross-sectional view of the insulating layer along line B1-B1 shown in FIG. 10A. FIG. 11B is a cross-sectional view of the insulating layer along the line B2-B2 shown in FIG. 10B. FIG. 11C is a cross-sectional view of the insulating layer along line B3-B3 shown in FIG. 10C.

As shown in FIG. 9, the multilayer substrate 120 includes an RFIC chip 106 and a power feeding circuit 122 that functions as the matching circuit 108. A first terminal electrode 102 and a second terminal electrode 104 are formed on the multilayer substrate 120.

The RFIC chip 106 has a structure in which various elements are incorporated in a semiconductor substrate made of a semiconductor such as silicon. As shown in FIG. 10C, the RFIC chip 106 is formed with a first input / output terminal 106a and a second input / output terminal 106b.

As shown in FIG. 9, the power feeding circuit 122 includes a coil conductor 124 and interlayer connection conductors 126 and 128. The coil conductor 124 includes coil patterns 124a to 124c shown in FIG. 10B or 10C. The coil pattern 124a constitutes the first coil part CIL1. The coil pattern 124b constitutes the second coil part CIL2. The coil pattern 124c constitutes a third coil part CIL3 and a fourth coil part CIL4.

The first coil portion CIL1, the third coil portion CIL3, and the interlayer connection conductor 126 are arranged to be aligned in the thickness direction (Z-axis direction) at a position on one side in the length direction (Y-axis direction). Yes. The second coil portion CIL2, the fourth coil portion CIL4, and the interlayer connection conductor 128 are arranged so as to be aligned in the thickness direction (Z-axis direction) at a position on the other side in the length direction (Y-axis direction). Yes.

The RFIC chip 106 is disposed between the first coil portion CIL1 and the second coil portion CIL2 when the multilayer substrate 120 is viewed in the height direction (Z-axis direction). The RFIC chip 106 is also disposed between the third coil part CIL3 and the fourth coil part CIL4.

The first terminal electrode 102 is disposed at one position in the length direction (Y-axis direction), and the second terminal electrode 104 is disposed at the other position. The 1st terminal electrode 102 and the 2nd terminal electrode 104 are produced from the copper foil provided with flexibility, and are formed in the strip shape of the same size.

As shown in FIGS. 10A to 10C, the multilayer substrate 120 includes three stacked sheet-like insulating layers 120a to 120c. The insulating layer 120b is located between the upper insulating layer 120a and the lower insulating layer 120c.

The first terminal electrode 102 and the second terminal electrode 104 are formed on the insulating layer 120a.

In the center of the insulating layer 120b, a through hole HL1 having a rectangular cross section is formed. The through hole HL <b> 1 is formed to a size that accommodates the RFIC chip 106. A strip-shaped coil pattern 124c is formed around the through hole HL1 of the insulating layer 120b. The coil pattern 124c is composed of a flexible copper foil.

One end of the coil pattern 124c overlaps with the first terminal electrode 102 in the thickness direction (Z-axis direction) and is connected to the first terminal electrode 102 by the interlayer connection conductor 130 extending in the thickness direction (Z-axis direction). It is connected. The other end of the coil pattern 124c overlaps the second terminal electrode 104 when viewed in the thickness direction, and is connected to the second terminal electrode 104 by an interlayer connection conductor 132 extending in the thickness direction. The interlayer connection conductors 130 and 132 are made of a metal bulk mainly composed of Sn.

The coil pattern 124c rotates twice around the one end portion in the counterclockwise direction, and then bends and extends in the length direction (Y-axis direction). The coil pattern 124c extending in the length direction (Y-axis direction) bends in the width direction (X-axis direction), rotates twice around the other end in the counterclockwise direction, and then moves to the other end. Reach.

In the insulating layer 120c, strip-like coil patterns 124a and 124b are formed. The coil patterns 124a and 124b are made of a flexible copper foil.

The outer end (first coil end T1) of the coil pattern 124a is arranged at a position overlapping with one corner of the rectangular through hole HL1. Further, the outer end portion (second coil end T2) of the coil pattern 124b is in the length direction with respect to the corner portion where the first coil end T1 is arranged among the four corner portions of the rectangular through hole HL1. It is arranged at a position that overlaps the corner portions arranged in the (Y-axis direction).

Starting from the center end of the coil pattern 124a, the coil pattern 124a rotates 2.5 times clockwise around the center end and then bends in the width direction (X-axis direction). To the other end (first coil end T1). Similarly, when the end on the center side of the coil pattern 124b is the starting point, the coil pattern 124b rotates 2.5 times around the center end in the counterclockwise direction, and then the width direction (X-axis direction) ) To reach the other end (second coil end T2). The center side end of the coil pattern 124a is connected to one end of the coil pattern 124c by an extending interlayer connection conductor 126 extending in the thickness direction (Z-axis direction). The center side end of the coil pattern 124b is connected to the other end of the coil pattern 124c by an interlayer connection conductor 128 extending in the thickness direction. The interlayer connection conductors 126 and 128 are made of a metal bulk mainly composed of Sn.

Here, the position of the center side end of the coil pattern 124a or one end of the coil pattern 124c is referred to as “first position P1”, and the position of the center side end of the coil pattern 124b or the other end of the coil pattern 124c is “ A second position P2 ″ is defined.

Dummy conductors 134 and 136 are formed on the insulating layer 120c. The dummy conductors 134 and 136 are made of a copper foil having flexibility. When the insulating layers 120b and 120c are viewed in the thickness direction (Z-axis direction), the dummy conductors 134 and 136 have the first and second coil ends T1 and T2 out of the four corner portions of the rectangular through hole HL1. It arrange | positions so that it may each overlap with the corner part which opposes the corner part arrange | positioned and the width direction (X-axis direction).

The RFIC chip 106 is mounted on the insulating layer 120c so that the four corner portions thereof face the first coil end T1, the second coil end T2, and the dummy conductors 134 and 136, respectively. The first input / output terminal 106a is connected to the first coil end T1, and the second input / output terminal 106b is connected to the second coil end T2.

Note that the thickness of the insulating layers 120a to 120c is not less than 10 μm and not more than 100 μm. Therefore, the RFIC chip 106 and the power feeding circuit 122 built in the multilayer substrate 120 can be seen through from the outside. Therefore, it is possible to easily confirm the connection state (presence of disconnection) between the RFIC chip 106 and the power feeding circuit 122.

In the RFIC element 8 shown by an equivalent circuit in FIG. 7, the inductor L1 corresponds to the first coil portion CIL1. The inductor L2 corresponds to the second coil portion CIL2. The inductor L3 corresponds to the third coil portion CIL3. The inductor L4 corresponds to the fourth coil portion CIL4. The characteristic of impedance matching by the feeder circuit 122 is defined by the values of the inductors L1 to L4.

One end of the inductor L1 is connected to the first input / output terminal 106a of the RFIC chip 106. One end of the inductor L2 is connected to the second input / output terminal 106b of the RFIC chip 106. The other end of the inductor L1 is connected to one end of the inductor L3. The other end of the inductor L2 is connected to one end of the inductor L4. The other end of the inductor L3 is connected to the other end of the inductor L4. The first terminal electrode 102 is connected to the connection point of the inductors L1 and L3. The second terminal electrode 104 is connected to the connection point of the inductors L2 and L4.

Further, as can be seen from the equivalent circuit shown in FIG. 7, the first coil part CIL1, the second coil part CIL2, the third coil part CIL3, and the fourth coil part CIL4 are wound so that the magnetic fields are in phase. And connected in series with each other. Accordingly, the magnetic fields generated from these coil portions CIL1 to CIL4 are directed in the same direction.

Further, as can be seen from FIGS. 10B and 10C, the first coil portion CIL1 and the third coil portion CIL3 have substantially the same loop shape and the same first winding axis. Similarly, the second coil part CIL2 and the fourth coil part CIL4 have substantially the same loop shape and the same second winding axis. The first winding axis and the second winding axis are arranged at positions sandwiching the RFIC chip 106.

That is, the first coil part CIL1 and the third coil part CIL3 are magnetically and capacitively coupled. Similarly, the second coil portion CIL2 and the fourth coil portion CIL4 are magnetically and capacitively coupled.

The RFIC chip 106 is composed of a semiconductor substrate. Therefore, the RFIC chip 106 functions as a ground or a shield with respect to the first coil unit CIL1, the second coil unit CIL2, the third coil unit CIL3, and the fourth coil unit CIL4. As a result, the first coil portion CIL1 and the second coil portion CIL2 and the third coil portion CIL3 and the fourth coil portion CIL4 are difficult to be coupled to each other both magnetically and capacitively. This can alleviate the concern that the communication signal pass band will be narrowed.

As described above, according to the above-described configuration, the RFID tag 6 can communicate even when attached to the metal surface of the article, and has higher communication capability, that is, can radiate radio waves with higher radiation efficiency. it can.

As described above and as shown in FIG. 7, the matching circuit 108 of the RFIC element 8 performs impedance matching between the first antenna element 12 and the second antenna element 14 and the RFIC chip 106 of the RFIC element 8. Therefore, the RFIC element 8 exhibits good communication characteristics at a UHF band frequency (for example, 900 MHz), for example. The matching circuit 108 constitutes a resonance circuit having a resonance frequency corresponding to the carrier frequency. Since the center frequency is mainly set by the RFIC element 8, the antenna pattern 10 functions as a simple radiation band, and the structure of the antenna pattern 10 is simple. Therefore, even when a plurality of packaging bags 2 are stacked, they can be read simultaneously by the reader / writer, are not easily affected by the contents and the material of the bag, and are excellent in environmental resistance.

Thus, according to the packaging bag 2 of the first embodiment, the RFIC element 8 is packaged together with a resonance circuit having a resonance frequency corresponding to the carrier frequency. Thereby, it can be set as a compact structure, improving a communication precision.

As described above, the first embodiment has been described, but the present invention is not limited to the above-described configuration, and other embodiments described below are possible.

(Embodiment 2)
Next, the packaging bag 50 in Embodiment 2 is demonstrated using FIG.

FIG. 12 is a plan view of the packaging bag 50 according to the second embodiment. As shown in FIG. 12, the packaging bag 50 of the second embodiment is different from the packaging bag 2 of the first embodiment in the shapes of the first antenna element 54 and the second antenna element 56 that constitute the dipole antenna pattern. ing.

The first antenna element 54 includes a first extending portion 54a connected to the RFIC element 55, a second extending portion 54b, a third extending portion 54c, a fourth extending portion 54d, a fifth extending portion 54e, 6 extending portion 54f. The second antenna element 56 includes a first extending portion 56a connected to the RFIC element 55, a second extending portion 56b, a third extending portion 56c, a fourth extending portion 56d, a fifth extending portion 56e, 6 extending portion 56f. Since the specific shapes of these extending portions are the same as those in the first embodiment, detailed description thereof is omitted.

According to such a configuration, as compared with the first embodiment, the first extending portion 56a and the third extending portion 56c of the second antenna element 56 extend longer to the left. Therefore, the width between the first region line 60 and the second region line 62, which is the range of the cutting region P3, can be set wider than the cutting region P2 of the first embodiment. Even when the cutting region P3 is set widely, the first antenna element 54 reaches the first region line 60 from the RFIC element 55 via the second region line 62, as in the first embodiment. The two antenna elements 56 reach the second region line 62 from the RFIC element 55 via the first region line 60.

According to this configuration, when the user cuts the main body 4 so as to cross the cutting region P3 from the cut edge 16, both the first antenna element 54 and the second antenna element 56 are cut, and the total length thereof is reduced. It becomes shorter with good balance. As a result, communication with the reader / writer becomes virtually impossible, and therefore the opening confirmation of the packaging bag 2 can be performed with high accuracy by bringing the reader / writer closer.

Particularly, since the length of the second antenna element 56 extending toward the first region line 60 is set longer than that of the first embodiment, the range of the cutting region P3 can be set wide. Thereby, when cutting the packaging bag 50, a user's convenience can be improved.

Note that the RFIC element 55 according to the second embodiment is located on the left side of the center position in the width direction of the main body 4 as the first extending portion 56a and the third extending portion 56c of the second antenna element 56 extend to the left. Is located.

(Embodiment 3)
Next, the packaging bag 70 in Embodiment 3 is demonstrated using FIG.

FIG. 13 is a plan view of the packaging bag 70 according to the third embodiment. As shown in FIG. 13, the packaging bag 70 of the third embodiment is mainly formed by connecting the ends of the first antenna element 74 and the second antenna element 76 constituting the dipole antenna pattern. And the arrangement of the RFIC element 78 are different from those of the packaging bag 2 of the first embodiment.

The first antenna element 74 includes a first extending portion 74a connected to the RFIC element 78, a second extending portion 74b, a third extending portion 74c, a fourth extending portion 74d, a seventh extending portion 74e, 6 extension part 74f and 7th extension part 74g are provided. The second antenna element 76 includes a first extending portion 76a, a second extending portion 76b, a third extending portion 76c, a fourth extending portion 76d, and a fifth extending portion 76e connected to the RFIC element 78. .

Here, the seventh extending portion 74g, which is the terminal portion of the first antenna element 74, and the fifth extending portion 76e, which is the terminal portion of the second antenna element 76, are connected together. That is, the first antenna element 74 and the second antenna element 76 constitute an integral conductive line. In the example illustrated in FIG. 13, the connection place between the seventh extension part 74 g and the fifth extension part 76 e is illustrated at a substantially central position in the width direction of the main body 4, but other positions may be used as the connection part.

As described above, the antenna pattern in the third embodiment constitutes a so-called “folded dipole type” antenna pattern.

Even when such a folded dipole antenna pattern is adopted, when the user cuts the main body 4 so as to cross the cutting region P2 from the cut edge 16, the first antenna element 74 and the second antenna element Both are configured to be cut. With such a configuration, the opening confirmation of the packaging bag 70 can be performed with high accuracy.

On the other hand, unlike the RFIC element 8 of the first embodiment, the RFIC element 78 is arranged vertically so that the direction in which the cut edge 16 extends (direction A) coincides with the short direction of the RFIC element 78. .

By arranging the RFIC element 78 in this way, it is possible to prevent the RFIC element 78 from becoming an obstacle to cutting when the main body 4 is cut along the direction intersecting the cut edge 16. Thereby, the opening confirmation of the packaging bag 70 can be implemented more accurately.

(Embodiment 4)
Next, the packaging bag 80 in Embodiment 4 is demonstrated using FIG.

FIG. 14 is a plan view of the packaging bag 80 according to the fourth embodiment. As shown in FIG. 14, the packaging bag 80 of the fourth embodiment is different from the packaging bag 2 of the first embodiment in that two cuts 84 a and 84 b are provided on the cut edge 82 of the main body 81. .

The notches 84a and 84b are provided at positions that fit within the cutting region P2 on the cut edge 82.

By providing such cuts 84a and 84b, the user can easily cut the main body 81. In addition, by setting the positions of the cuts 84a and 84b within the cutting region P2 on the cut edge 82, it is possible to ensure that cutting is performed within the cutting region P2. With such a configuration, opening confirmation of the packaging bag 80 can be performed with high accuracy.

(Embodiment 5)
Next, the packaging bag 90 in Embodiment 5 is demonstrated using FIG.

FIG. 15 is a plan view of the packaging bag 90 in the fifth embodiment. As shown in FIG. 15, the packaging bag 90 of the fifth embodiment is not provided with the base material 5, and the RFID tag 6 is directly provided on the surface of the main body 4. 2 and different.

In order to directly provide the RFID tag 6 on the surface of the main body 4, for example, the antenna pattern 10 can be provided by printing and transferring the antenna pattern 10 on a sheet-like member of the main body 4. Regarding the RFIC element 8, the RFIC element 8 may be directly provided on the main body 4 by arranging the RFIC element 8 on the main body 4 and attaching an adhesive sheet to the main body 4 so as to cover the RFIC element 8. it can.

Thus, by providing the RFID tag 6 directly on the surface of the main body 4, a simpler configuration can be achieved as compared with the case where the RFID tag 6 is provided via the base material 5.

As mentioned above, although the present invention has been described with reference to the above-described embodiments and modifications, the present invention is not limited to the above-described embodiments and modifications. For example, one modification of the first embodiment will be described with reference to FIG.

<Modification>
The packaging bag 200 shown in FIG. 16 differs from the packaging bag 2 of Embodiment 1 in the position where the RFIC element 202 is provided.

As shown in FIG. 16, the antenna pattern 204 of the packaging bag 200 includes a first cutting extension part 206, a second cutting extension part 208, and a third cutting extension part 210 in order from the cut edge 16. . The first cutting extending portion 206 corresponds to the third extending portion 14c of the second antenna element 14 of the first embodiment. The second cutting extending portion 208 corresponds to the first extending portion 12a of the first antenna element 12 and the first extending portion 14a of the second antenna element 14 of the first embodiment. The third cutting extension 210 corresponds to the third extension 12c of the first antenna element 12 of the first embodiment.

The antenna pattern 204 further includes a first connection extending portion 212 and a second connection extending portion 214. The first connection extending portion 212 connects one end of the first cutting extending portion 206 and one end of the second cutting extending portion 208 closer to the one end. The second connection extending portion 214 connects the other end of the second cutting extending portion 208 and one end of the third cutting extending portion 210 closer to the other end.

In Embodiment 1, the RFIC element 8 is provided in the second cutting extension 208, but in this modification, the RFIC element 202 is provided in the second connection extension 214 as shown in FIG. . In FIG. 16, the location where the RFIC element 202 is provided is indicated by a dotted line for convenience. However, when actually provided, the second connection extending portion 214 is connected to the two terminal electrodes of the RFIC element 202. What is necessary is just to divide.

Even in such a case, in the configuration shown in FIG. 16, the first cutting extending portion 206, the second cutting extending portion 208, and the third cutting extending portion 210 constitute an S-shaped linear portion. . In addition, all of the first cutting extending portion 206, the second cutting extending portion 208, and the third cutting extending portion 210 extend over a predetermined cutting region P2 in the A direction which is the width direction of the main body 4. Is formed. Therefore, when the main body 4 is cut from the cut edge 16 within the cutting region P2, the first antenna element 216 including the third cutting extension 210 is extended from the RFIC element 202 and the RFIC element 8 is extended to the other side. Thus, both the second antenna elements 218 including the first cutting extension 206 are cut with good balance. Thereby, similarly to the packaging bag 2 of Embodiment 1, the opening confirmation of the packaging bag 200 can be accurately performed.

In this modification, the case where the RFIC element 202 is provided in the second connection extending portion 214 has been described. However, the present invention is not limited to such a case, and the same effect can be obtained even if provided in the first connection extending portion 212. it can.

Considering the modification and the first embodiment, the RFIC elements 8 and 202 may be provided in any one of the second cutting extension 208, the first connection extension 212, or the second connection extension 214. Good.

In addition, although the said embodiment demonstrated the case where the medicine package which accommodates the medicine 3 was used as the packaging bag 2, it is not restricted to such a case, The contents (for example, keys etc.) other than a medicine are accommodated. If it is a packaging bag, it is applicable similarly.

Further, in the first embodiment, as shown in FIG. 2, the third extension part 12 c of the first antenna element 12 and the third extension part 14 c of the second antenna element 14 are both the first area line 20 and the second area line. Although it straddles both 22, it is not restricted to such a structure. For example, both ends of the third extending portion 12 c of the first antenna element 12 may be positioned on the first region line 20 and the second region line 22. That is, the second extending portion 12b may be on the second region line 22 and the fourth extending portion 12d may be on the first region line 20. Similarly, both ends of the third extending portion 14 c of the second antenna element 14 may be positioned on the first region line 20 and the second region line 22. That is, the second extending portion 14 b may be on the first region line 20 and the fourth extending portion 14 d may be on the second region line 22.

Moreover, although the said embodiment demonstrated the case where the metal wire which comprises each antenna element extended along either the width direction (A direction) or length direction (B direction) of a main body, It is not limited to such a case. Each antenna element may be extended so as to extend in a direction intersecting with the A direction and the B direction.

(Embodiment 6)
Next, the adhesive sheet 300 according to Embodiment 6 will be described with reference to FIGS. 17 to 19B.

The adhesive sheet 300 of the sixth embodiment is not a packaging bag for storing medicines as in the embodiment 1-5, but an adhesive for confirming the opening of a container such as a cardboard as shown in FIGS. 19A and 19B. The sheet is different from the first to fifth embodiments.

FIG. 17 is a plan view of the sticking sheet 300, and FIG. 18 is a side view of the sticking sheet 300. FIG. 19A and 19B are perspective views showing an example of use of the adhesive sheet 300, FIG. 19A shows a state before opening, and FIG. 19B shows a state after opening.

As shown in FIGS. 17 and 18, the adhesive sheet 300 includes a sheet-like main body 302 and an RFID tag 304.

The sheet-like main body 302 is a sheet-like member that is affixed to an opening location of the container 400 described later. The main body 302 has a sheet shape and is not provided with a storage space for storing the contents as in Embodiment 1-5.

As shown in FIG. 18, the main body 302 has a front surface 302a and a back surface 302b. The front surface 302 a is a surface that holds the RFID tag 304. In Embodiment 6, the RFID tag 304 is directly printed on the surface 302a. The back surface 302 b is a surface on the side that is attached to the container 400. The back surface 302b in the sixth embodiment constitutes an adhesive surface.

As shown in FIG. 17, in the main body 302, two opposite sides 302c and 302d constitute a cut side.

Since the RFID tag 304 has the same configuration as that of the RFID tag 6 of the first embodiment, description thereof will be omitted as appropriate. The RFID tag 304 includes an RFIC element 306 and an antenna pattern 308.

The antenna pattern 308 includes a first antenna element 310 and a second antenna element 312.

The first antenna element 310 includes a first extending portion 310a, a second extending portion 310b, a third extending portion 310c, a fourth extending portion 310d, a fifth extending portion 310e, a sixth extending portion 310f, 7 extending portion 310g. The second antenna element 312 includes a first extending portion 312a, a second extending portion 312b, a third extending portion 312c, a fourth extending portion 312d, and a fifth extending portion 312e. Since the extending direction and connection relationship of each extending portion are the same as those in the first embodiment, description thereof is omitted.

Inside the main body 302, a cutting area P4 is defined as a virtual area for cutting the main body 302. The cutting area P4 is divided by two lines, a first area line 314 and a second area line 316.

In such a configuration, both the first antenna element 310 and the second antenna element 312 are cut when the main body 302 is cut from the cut side 302c or the cut side 302d within the cutting region P4. . Thereby, like Embodiment 1, the cutting | disconnection of the adhesive sheet 300 can be confirmed with sufficient precision, and the opening confirmation of the container 400 with which the adhesive sheet 300 was affixed can be implemented with sufficient precision.

19A and 19B, a corrugated cardboard 400a is illustrated as an example of the container 400. The “container” may contain an object and may have an opening at an opening location.

As shown in FIG. 19A, in the unopened state in which the corrugated cardboard 400a is not opened, the sticking sheet 300 is stuck on the unsealed portion (opening line) 402 of the corrugated cardboard 400a. At this time, the above-described cutting region P4 is arranged so as to straddle the opening location 402. More specifically, both the cut edges 302c and 302d of the main body 302 of the adhesive sheet 300 shown in FIG. 17 are arranged so as to straddle the opening location 402 in the cutting region P4. The unsealed portion 402 of the cardboard 400a is sealed by the sticking sheet 300.

In the unopened state, since the adhesive sheet 300 attached to the cardboard 400a is not cut, the reader / writer and the RFID tag can communicate with each other. Thereby, it can be confirmed using the reader / writer that the unsealed portion 402 of the cardboard 400a is not opened, that is, the cardboard 400a is not opened.

On the other hand, as shown in FIG. 19B, in the opened state where the cardboard 400a is opened, the adhesive sheet 300 attached to the cardboard 400a is cut along the cutting region P4. Therefore, even if the reader / writer is brought close, the reader / writer and the RFID tag cannot communicate. Thereby, it can be confirmed that the unsealed portion 402 of the cardboard 400a has already been opened, that is, the cardboard 400a has been opened.

According to such a configuration, an opening management system similar to the opening management system 220 of Embodiment 1 shown in FIGS. 3A and 3B can be applied. That is, opening of the plurality of containers 400 can be managed by executing the communication steps S1 and S2, the determination step S3, and the notification step S4 shown in FIG.

According to the above-mentioned sticking sheet 300, since the opening confirmation can be performed if sticking so that the cutting region P4 extends over the opening location 402 of the container 400, the sticking position of the sticking sheet 300 is not required to be strictly accurate, and the degree of freedom is high. high. For this reason, the workability | operativity at the time of sticking the sticking sheet 300 on the container 400 can be improved. Moreover, since the positional offset of the sticking sheet 300 does not occur after the sticking sheet 300 is once stuck on the container 400, the opening confirmation of the container 400 can be accurately performed.

In the sixth embodiment, the case where the cardboard 400a is used as the container 400 has been described. However, the present invention is not limited to such a case. The present invention can be applied to any container as long as it is a container having an opening, such as another container such as a bottle or can, or a carry case transported by airplane.

In the sixth embodiment, the case where the RFID tag 304 is directly printed on the surface 302a of the main body 302 has been described. However, the present invention is not limited to this, and a method other than printing may be used. Further, a substrate or the like may be interposed between the surface 302a and the RFID tag 304.

In the sixth embodiment, the case where the back surface 302b of the main body 302 forms an adhesive surface has been described. You may make it do.

In addition, the features described with respect to Embodiments 1-5 and the modifications described above may be applied to the adhesive sheet 300 of Embodiment 6 as appropriate.

Although the present disclosure has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present disclosure as set forth in the appended claims. In addition, combinations of elements and changes in the order in each embodiment can be realized without departing from the scope and spirit of the present disclosure.

It should be noted that, by appropriately combining any of the above-described various embodiments and modifications, it is possible to achieve the respective effects.

The present invention is applicable to any packaging bag with an RFID tag and an opening management system for the packaging bag, and an adhesive sheet with an RFID tag and an opening management system for a container to which the adhesive sheet is attached.

2 (with RFID tag) packaging bag 3 medicine (contents)
4 Main body 6 RFID tag 8 RFIC element 10 Antenna pattern 12 First antenna element 14 Second antenna element 16 Cut edge 20 First area line 22 Second area line 222 Reader / writer 300 (with RFID tag) Paste sheet 302 Main bodies 302c, 302d Cut edge 304 RFID tag 306 RFIC element 308 Antenna pattern 310 First antenna element 312 Second antenna element 314 First area line 316 Second area line 400 Container 400a Corrugated cardboard 402 Unsealed place P1 Accommodating area P2 Cutting area P4 Cutting area

Claims (12)

A bag-shaped main body formed by sealing the peripheral portions of sheet-like members facing each other, having a storage area for storing contents inside, and a main body having a cut edge on one side thereof,
An RFIC element provided in the main body and an RFID tag having an antenna pattern,
The main body has a cutting region sandwiched between a first region line and a second region line, which is a region that cuts the housing region and extends in a direction intersecting the cut edge,
The antenna pattern of the RFID tag includes a first antenna element extending from the RFIC element to the first area line via the second area line, and the antenna pattern from the RFIC element via the first area line. Having a second antenna element leading to the second region line, and constituting a dipole antenna pattern;
Packaging bag with RFID tag. The packaging bag with an RFID tag according to claim 1, wherein the RFIC element is packaged together with a resonance circuit having a resonance frequency corresponding to a carrier frequency. The first antenna element has an extending portion that extends in a direction away from the cut edge outside the cutting region than the first region line,
3. The packaging bag with an RFID tag according to claim 1, wherein the second antenna element has an extending portion that extends in a direction away from the cut edge outside the cutting region with respect to the second region line. The first antenna element is connected to the RFIC element, and is connected to the first extending portion and a first extending portion extending so as to straddle the second region line along a direction in which the cut edge extends. A second extension portion extending in a direction away from the cut edge; and a third extension portion connected to the second extension portion and extending across the second region line and the one region line along a direction in which the cut edge extends. Having a stretched portion,
The second antenna element is connected to the RFIC element, and is connected to the first extending portion and a first extending portion extending so as to straddle the first region line along a direction in which the cut edge extends. A second extension portion extending in a direction approaching the cut edge, and a third extension connected to the second extension portion and extending across the first region line and the second region line along a direction in which the cut edge extends. The packaging bag with an RFID tag according to any one of claims 1 to 3, further comprising an extending portion. The RFID tag packaging bag according to any one of claims 1 to 4, wherein the RFID tag is directly provided on a surface of the main body. A plurality of packaging bags with RFID tags;
A reader / writer that communicates with the RFID tag of the packaging bag with the RFID tag via an electromagnetic field,
Each of the packaging bags with RFID tags is
A bag-shaped main body formed by sealing peripheral portions of sheet-like members facing each other, having a cut edge on one side thereof, and a main body having an accommodating area for accommodating contents inside,
An RFID tag provided on the main body and having an RFIC element and an antenna pattern,
The main body has a cutting region sandwiched between a first region line and a second region line, which is a region that cuts the housing region and extends in a direction intersecting the cut edge,
The antenna pattern of the RFID tag includes a first antenna element extending from the RFIC element to the first area line via the second area line, and the antenna pattern from the RFIC element via the first area line. A second antenna element that reaches the second region line, and constitutes a dipole antenna pattern;
A communication step of communicating the reader / writer with each of the RFIC elements of the plurality of packaging bags with RFID tags;
Based on the communication result of the communication step, the plurality of packaging bags with RFID tags include packaging bags with RFID tags that have been opened by cutting the antenna pattern of the RFID tags in the cutting region. A determination step for determining whether or not
In the determination step, when it is determined that an unsealed RFID tag packaging bag is included in the plurality of RFID tag packaging bags, a notification step for notifying a user is performed.
An opening management system for managing opening of the plurality of packaging bags with RFID tags. A sheet-like main body to be affixed to an opening location of the container, wherein the two opposing sides are configured as cut sides;
An RFIC element provided in the main body and an RFID tag having an antenna pattern,
The main body has a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge,
The antenna pattern of the RFID tag includes a first antenna element extending from the RFIC element to the first area line via the second area line, and the antenna pattern from the RFIC element via the first area line. Having a second antenna element leading to the second region line, and constituting a dipole antenna pattern;
Affixing sheet with RFID tag. The RFID tag-attached sheet according to claim 7, wherein the RFIC element is packaged together with a resonance circuit having a resonance frequency corresponding to a carrier frequency. The first antenna element has an extending portion that extends in a direction away from the cut edge outside the cutting region than the first region line,
9. The RFID tag-attached sheet according to claim 7, wherein the second antenna element has an extending portion that extends in a direction away from the cut edge outside the cutting region with respect to the second region line. The first antenna element is connected to the RFIC element, and is connected to the first extending portion and a first extending portion extending so as to straddle the second region line along a direction in which the cut edge extends. A second extension portion extending in a direction away from the cut edge; and a third extension portion connected to the second extension portion and extending across the second region line and the one region line along a direction in which the cut edge extends. Having a stretched portion,
The second antenna element is connected to the RFIC element, and is connected to the first extending portion and a first extending portion extending so as to straddle the first region line along a direction in which the cut edge extends. A second extension portion extending in a direction approaching the cut edge, and a third extension connected to the second extension portion and extending across the first region line and the second region line along a direction in which the cut edge extends. The sticking sheet with an RFID tag according to any one of claims 7 to 9, further comprising an extending portion. The RFID tag-attached sheet according to any one of claims 7 to 10, wherein the RFID tag is directly provided on a surface of the main body. Affixing sheets with a plurality of RFID tags,
An opening management system comprising a reader / writer that communicates with the RFID tag of the attached sheet with the RFID tag via an electromagnetic field,
Each of the attached sheets with RFID tags is:
A sheet-like main body to be affixed to an opening location of the container, wherein the two opposing sides are configured as cut sides;
An RFID tag provided on the main body and having an RFIC element and an antenna pattern,
The main body has a cutting region sandwiched between a first region line and a second region line that are virtual lines extending in a direction intersecting the cut edge,
The antenna pattern of the RFID tag includes a first antenna element extending from the RFIC element to the first area line via the second area line, and the antenna pattern from the RFIC element via the first area line. A second antenna element that reaches the second region line, and constitutes a dipole antenna pattern;
A communication step of causing the reader / writer to communicate with the RFIC element of each of the plurality of the RFID tag-attached sheets;
Based on the communication result of the communication step, the plurality of the RFID tag-attached sheets include an RFID tag-attached sheet that has been opened by cutting the antenna pattern of the RFID tag in the cutting region. A determination step for determining whether or not
In the determination step, when it is determined that an unsealed RFID tag-attached sheet is included in the plurality of RFID tag-attached sheets, a notification step of notifying a user is performed,
An opening management system for managing opening of the container.

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