JPH1145316A - Ic card case and ic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent data of an IC card or an IC chip from being destroyed by storing an IC card in an IC card case and permitting an electromagnetic shielding means to shield an electromagnetic wave even if it is radiated. SOLUTION: The IC card case 1 is composed of a transparent film 2, nonwoven fabric and a cover part 4. Nonwoven fabric is obtained by mixing fiber-like plastic and metallic fiber as the electromagnetic shielding means and compressing it in a sheet form for forming the bag of the IC card case 1, for example. Thus, electromagnetic introduction to the IC card by an electromagnetic wave is prevented by containing metallic fiber having electric conductivity as a conductive member. The cover part 4 is peeled off so that it cannot be adhered again at the time of opening. When the IC card is stored in the IC card case 1, the electromagnetic wave is shielded by the metallic fiber of nonwoven fabric even if it is radiated. The influence of the harmful electromagnetic wave such as the destruction of data in the IC card or the IC chip is not given at the time of storing the IC card.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for controlling
The present invention relates to an IC card case for an IC card that operates a C chip.

[0002]

2. Description of the Related Art Recently, an IC card in which an IC chip in which a memory or a microcomputer is chipped is stored in a plastic card is known. Conventionally, in this IC card, input / output or power supply terminals of an IC chip are exposed outside the card. (Hereinafter, referred to as data including data and programs).

[0003] However, in such a contact type IC card, data input / output may not be possible due to damage or rust of the terminals of the IC chip. So recently,
Non-contact IC cards have appeared. This non-contact type I
The C card is a plastic card in which an IC chip and a coil are sealed, and the coil is connected to the IC chip. The IC card reader irradiates an induced electromagnetic wave and receives the induced electromagnetic wave by the IC card coil. Then, the induced electromotive force generated by the coil is used as the driving power of the IC card, and the data stored in the IC chip is read by the electromagnetic wave superimposed on the induced electromagnetic wave.

[0004]

However, such a non-contact type IC card drives an IC chip by using an induced electromotive force of an induced electromagnetic wave generated by a coil and a command signal included in the induced electromagnetic wave, and at the same time, drives the IC chip. If the output of the induction electromagnetic wave is too large or the IC chip is irradiated with abnormal harmful induction electromagnetic wave, the data stored in the IC chip is destroyed or the IC chip itself is broken It is conceivable that.

In particular, a predetermined program or data is
When storing or delivering the data stored in the C chip, the stored data is rewritten or destroyed during a period from inputting necessary data to the IC card to taking out and using the stored data. It is difficult to check whether there is.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and it is intended to prevent rewriting and destruction of data due to harmful radio waves of a non-contact type IC card and destruction and failure of an IC chip, and to store data to be stored. Can prevent data rewriting and destruction by unintended electromagnetic waves after input
The purpose is to provide a C card case.

[0007]

In order to solve the above-mentioned problems, an IC card case according to a first aspect of the present invention comprises a guided means for generating an induced electromotive force by an induced electromagnetic wave and an induced electromotive force of the guided means. An IC card case accommodating an IC card having an IC chip driven by electric power, wherein an electromagnetic shield means for blocking or attenuating the induction of electromagnetic waves to the guided means is provided. .

According to the IC card case of the present invention, if the IC card is stored in the IC card case, even if the IC card case is irradiated with the electromagnetic wave, the IC card is shielded by the electromagnetic shielding means. Or IC
The chip is prevented from being destroyed.

The IC card case according to a second aspect of the present invention is the IC card case according to the first aspect, wherein the electromagnetic shielding means is constituted by a bag portion for accommodating the IC card, and the bag portion is electrically conductive. It is characterized by including a sex member.

According to the IC card case of the second aspect of the present invention, in order to include the conductive member in the bag portion, for example, the bag portion is formed of a conductive fiber, or a cloth, sheet, film or the like is used. By incorporating a conductive member (for example, a metal fiber or a metal foil) by vapor deposition, knitting, sticking, sewing, etc., the IC chip is not affected by electromagnetic waves when the IC card is stored. It is cheap.

The IC card case according to a third aspect of the present invention is the IC card case according to the first aspect, wherein a thin conductor is provided inside or outside the bag portion, and the thin conductor is provided. It is characterized in that said electromagnetic shielding means is constituted.

According to the IC card case of the third aspect of the present invention, the IC card housed in the bag can be shielded from the influence of the electromagnetic wave by the thin conductor.

The IC card case according to a fourth aspect of the present invention is the IC card case according to the first to third aspects, wherein the bag portion for accommodating the IC card is provided with a lid portion which cannot be re-attached when opened. It is characterized by being provided.

According to the IC card case of the fourth aspect of the present invention, if the IC card storing the data is stored in the IC card case having the electromagnetic shielding means and sealed with the non-re-attachable lid, the electromagnetic wave can be prevented. Even if it hits the case of the IC card, the destruction and rewriting of the data of the inside IC card can be prevented, and once the lid is opened, the lid does not adhere again, so there is a possibility that the IC card is taken out from the bag. It is found to be high. Therefore, an IC card in which data rewriteability is found can be easily distinguished from a normal IC card, and quality control of the IC card is facilitated.

According to a fifth aspect of the present invention, there is provided an IC card which is housed in the IC card case according to any one of the first to fifth aspects and sealed.

According to the IC card of claim 5 of the present invention,
Since it is sealed and housed in an IC card case having an electromagnetic shielding function, even if irradiation of an induced electromagnetic wave from the outside is performed in the sealed state, the induced electromagnetic wave can be blocked, so that the IC card is stored in the IC card. In addition to preventing the destruction, alteration, damage, etc. of the data, the possibility of operation such as destruction, alteration, damage, etc. of the data of the IC card can be easily determined based on the presence / absence of opening, thereby facilitating the quality control of the IC card product.

According to a sixth aspect of the present invention, there is provided an IC card wherein an electromagnetic shielding film which cannot be re-attached after being peeled off is bonded to one of both sides or one side.

According to the IC card of the present invention, the electromagnetic wave is shielded in a state where the electromagnetic shielding film is stuck, so that destruction, alteration, damage and the like can be prevented. The risk of operation such as destruction, alteration, damage, etc. of the IC card can be easily determined, and quality control of IC card products becomes easy.

[0019]

Next, an IC card case according to a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an IC card case according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an I-shaped bag.
This IC card case 1 is composed of a transparent film 2, a nonwoven fabric 3 (see FIG. 2), and a cover 4. The transparent film 2 is made of, for example, a plastic film such as polyethylene, polypropylene or polyethylene terephthalate, and is made of a transparent sheet so that the stored contents such as pictures and characters on the surface of the IC card 5 to be stored can be grasped. .

In order to form the bag of the IC card case 1, the nonwoven fabric 3 is formed into a sheet by mixing, for example, a fibrous plastic such as polyester fiber and a metal fiber such as aluminum, copper or silver as electromagnetic shielding means. It is compressed. The nonwoven fabric 3 includes metal fibers 3a having conductivity as a conductive member,
Electromagnetic induction to the IC card by electromagnetic waves is prevented. The nonwoven fabric 3 and the transparent film 2 are bonded by, for example, ultrasonic bonding or heat fusion.

In the vicinity of the opening of the IC card case 1,
A cover 4 is provided that is peeled off when the package is opened. As shown in FIG. 2, the lid portion 4 is bonded to the nonwoven fabric 3 side along a perforation 4b by heat bonding or ultrasonic bonding. The flap portion 4a bonded to the transparent film 2 side of the lid portion 4 is bonded to the edge portion 2a of the transparent film 2 with an adhesive strength that can be peeled off by heating.
And the edge 2a cannot be bonded again.

The flap portion 4a of the lid portion 4 is peelably adhered to the edge portion 2a so that the IC card 5 storing the data is stored in the IC card case 1 and sealed. Can prevent the destruction and rewriting of data in the IC card 5 inside, and once the flap portion 4a and the edge portion 2a are opened, they do not adhere again, so that the IC card 5 can be taken out of the IC card case 1. It is recognized that the IC card has high operability, and it is possible to easily distinguish an IC card in which data rewriteability is found from a normal IC card, thereby facilitating quality control of the IC card.

The housed IC card 5 includes guided means such as a coil for generating induced electromotive force by induced electromagnetic waves,
An IC chip driven by the induced electromotive force of the guided means, wherein the IC chip is sealed in a plastic plate. The IC card is irradiated with an induced electromagnetic wave from an IC card reader, and the induced electromagnetic wave generates an induced electromotive force in the coil to drive the IC chip, and receives a data signal superimposed on the induced electromagnetic wave to receive the IC signal. The input / output command of the chip is taken out, the data is stored in the IC chip, or the data stored in the IC chip is read, converted into an electromagnetic wave, and read by the IC card reader. This IC chip may be an IC chip having only a memory, and includes an IC chip having a microcomputer and a memory.

According to the IC card case 1, if the IC card is stored in the IC card case 1, the electromagnetic wave is shielded by the metal fibers of the nonwoven fabric 3 even when irradiated with the electromagnetic wave. It is not affected by harmful electromagnetic waves such as destruction of card data or IC chips, and can be manufactured at low cost.

For example, in order to provide the IC card case 1 with an electromagnetic shielding function, in addition to forming the bag portion with the metal fiber 3a as described above, for example, a cloth, sheet,
It can be configured by incorporating a conductive member (for example, metal fiber) into a film or the like by knitting, sticking, sewing, or the like.

Further, the IC card case 1 is provided with a thin conductor (for example, a thin dielectric such as a metal foil, a film-shaped aluminum foil, a sheet-shaped aluminum foil, etc.) inside or outside the bag portion. Alternatively, the electromagnetic shield means may be constituted by this thin conductor. In this case, the influence of the electromagnetic wave on the IC card stored in the bag can be cut off by the thin conductor.

The flap portion 4a and the edge portion 2a may be adhered to each other with a seal paper (not shown).
If the resin is thermally bonded to the edge 2a so that the resins can be separated from each other, the step of attaching a seal is not required, which is advantageous for mass production. Also,
Adhesion between the flap portion 4a and the edge portion 2a is advantageous to mass production because heat bonding does not require an adhesive application step or a drying step, as compared with the use of an adhesive.

FIGS. 3 and 4 show an IC card case according to a second embodiment of the present invention. This IC card case 10 has a metal foil film 11 having a metal film formed on the surface and a plastic film 12 made of transparent polyethylene terephthalate or the like formed in a bag shape.
The metal foil film 11 constitutes the electromagnetic shielding means of the present invention.
Metals such as copper and iron are deposited and sputtered on polyethylene films, polyethylene terephthalate films, polyamide films, and the like, and those formed by bonding and applying metal foils with an adhesive. Instead of the metal foil film 11, a nonwoven fabric in which conductive fibers are woven in random directions, or a material in which metal fibers or carbon fibers are bonded to synthetic fibers or the like on polyester fibers or the like may be used.

In this embodiment, the metal foil film 11 is bonded to one or both sides of the IC card 13 by resin bonding. In the resin bonding portion 11a between the IC card 13 and the metal foil film 11, the bonded resins are separated so that they cannot be re-bonded. The resin bonding portion 11a is obtained by fusing a plastic film (for example, polyethylene) serving as a base material of the metal foil film 11 to polyethylene terephthalate forming the surface of the IC card 13. Of course, a film in which the base material of the metal foil film is fused to the polyethylene terephthalate of the IC card 13 by heat fusion or ultrasonic waves at a relatively low temperature to weaken the adhesive strength may be used.

The transparent plastic film 12 is made of polyethylene terephthalate, polyethylene or the like. In this embodiment, the metal foil film 11
The plastic film 12 is formed in a rectangular quadrilateral, and the four sides of the quadrilateral are glued with a constant width. When the IC card 13 is accommodated in the IC card case 10, a cutout perforation 14 is formed in the plastic film 12 at a position where the one side edge 13 a on the short side of the IC card 13 is located. Have been.

For this IC card case 10, I
The C card 13 is stored in a sealed state in advance. The IC chip of the IC card 13 records necessary data and programs in a state before sealing. First, the IC card 13 on which data is recorded is placed at a predetermined position on the metal foil film 11. Furthermore, I
On the C card 13, a hot melt adhesive or the like is applied around and a plastic film 12 formed with a predetermined perforation 14 is placed, and the metal foil film 11, the IC card 13, and the plastic film 12 are Heat and fuse. As a result, the metal foil film 11 and the IC card 13 are adhered so that they can be peeled off and cannot be re-adhered.
Around the IC card 13 of the metal foil film 11 and the plastic film 12 are bonded, and the IC card 13 is sealed between the metal foil film 11 and the plastic film 12. At this time, if many IC cards 13 are arranged at equal intervals between the metal foil film 11 and the plastic film 12, many IC cards 13 can be sealed at one time. After the sealing of many IC cards 13 is completed, the IC cards 13 are separated by a cutter or the like.

According to the IC card case 10 in which the IC card 13 is sealed, it is possible to determine whether the IC card 13 is used or not by opening the IC card case 10. Since the IC card 13 has the electromagnetic shielding function, the IC card 13 in which the IC card case 10 is opened can be easily identified as having a risk of data damage or alteration. Also, perforation 14
If the plastic film 12 is cut off along the
The card 13 can be inserted and removed, and the IC card 13 can be stored while maintaining the electromagnetic shielding function.

The IC card case 10 may be in the form of an envelope with a lid glued. Although the IC card 13 is sealed in the IC card case 10, it is also possible to determine whether the prepaid card has been altered by sealing a prepaid card such as a telephone card.

FIG. 5 shows an IC card 13 in which an electromagnetic shielding film 15 is attached to one or both sides by an adhesive. The electromagnetic shielding film 15 is peeled from the IC card 13 so that it cannot be re-attached. Examples of the electromagnetic shielding film 15 include a film obtained by vapor-depositing and sputtering a metal such as aluminum, copper, and iron on a polyethylene film, a polyethylene terephthalate film, a polyamide film, or the like, or a film obtained by bonding a metal foil with an adhesive.

The electromagnetic shielding film 15 of the IC card 13 shown in FIG.
In addition, a specific number 16 or a mark may be displayed, and when the electromagnetic shielding film 15 is peeled off, the character or the like of the specific number 16 may be damaged.

[0037]

According to the IC card case of the first aspect of the present invention, if the IC card is stored in the IC card case, even if the IC card case is irradiated with electromagnetic waves, it is shielded by the electromagnetic shielding means. Data or I
The C chip is prevented from being destroyed.

According to the IC card case of the second aspect of the present invention, in order to include the conductive member in the bag portion, for example, the bag portion is formed of conductive fiber, or a cloth, sheet, film, or the like is used. By incorporating a conductive member (e.g., metal fiber or metal foil) by knitting, sticking, sewing, or the like, the IC chip is not affected by electromagnetic waves when the IC card is stored, and is inexpensive. is there.

According to the IC card case of the third aspect of the present invention, the IC card accommodated in the bag can be shielded from the influence of the electromagnetic wave by the thin conductor.

According to the IC card case of the fourth aspect of the present invention, if the IC card storing the data is housed in the IC card case having the electromagnetic shielding means and sealed with the non-re-attachable lid, the electromagnetic wave can be prevented. Even if it hits the case of the IC card, the destruction and rewriting of the data of the inside IC card can be prevented, and once the lid is opened, the lid does not adhere again, so there is a possibility that the IC card is taken out from the bag. It is found to be high. Therefore, an IC card in which data rewriteability is found can be easily distinguished from a normal IC card, and quality control of the IC card is facilitated.

Therefore, according to claims 1 to 4 of the present invention,
According to the C card case, rewriting and destruction of data due to harmful radio waves of the non-contact type IC card or destruction and failure of the IC chip are prevented, and data rewriting and destruction by unintended electromagnetic waves after inputting data to be stored is prevented. Checking is possible, and the cost is low and the quality control of the IC card becomes easy.

Further, according to the IC card of claim 5 of the present invention, since the IC card is sealed and housed in the IC card case having an electromagnetic shielding function, irradiation of an induced electromagnetic wave from the outside is possible in the sealed state. Even if it is performed, the induced electromagnetic wave can be blocked, so that destruction, alteration, damage, etc. of the data stored in the IC card can be prevented, and operations such as destruction, alteration, damage, etc. of the IC card data can be prevented depending on whether the data is opened. The risk can be easily determined, and the quality control of the IC card product becomes easy.

According to the IC card of the present invention, since the electromagnetic wave is shielded in a state where the electromagnetic shielding film is stuck, destruction, alteration, damage and the like can be prevented. The risk of operation such as destruction, alteration, damage, etc. of the IC card can be easily determined, and quality control of IC card products becomes easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of an IC card case according to an embodiment of the present invention.

FIG. 2 is a view showing an adhesive portion and a metal fiber of a lid portion on a nonwoven fabric side of an IC card case.

FIG. 3 is a plan view of an IC card case according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of the IC card case and the sealed IC card of FIG. 3;

FIG. 5 is a plan view of an IC card to which an electromagnetic shielding film is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 IC card case 2 Transparent film 3 Nonwoven fabric 4 Lid 4a Flap part 5 IC card

Claims (6)

[Claims] 1. An IC card case for storing an IC card including a guided means for generating an induced electromotive force by induced electromagnetic waves and an IC chip driven by the induced electromotive force of the guided means. An IC card case provided with an electromagnetic shield means for blocking or attenuating the induction of electromagnetic waves to the induction means. 2. The IC card case according to claim 1, wherein said electromagnetic shielding means is constituted by a bag for accommodating said IC card, and said bag includes a conductive member. IC card case. 3. The IC card case according to claim 1, wherein a thin conductor is provided inside or outside said bag portion, and said thin conductor constitutes said electromagnetic shielding means. Characterized IC card case. 4. The IC card case according to claim 1, wherein:
An IC card case, comprising a lid portion which cannot be re-attached when opened. 5. An IC card housed in a case which is housed and sealed in the IC card case according to any one of claims 1 to 5. 6. An IC card characterized in that an electromagnetic shielding film, which cannot be re-attached after peeling, is attached to one of both sides or one side.