HK1045825A1 - Molded article of synthetic resin and process for producing the same - Google Patents
Molded article of synthetic resin and process for producing the same Download PDFInfo
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- HK1045825A1 HK1045825A1 HK02107278A HK02107278A HK1045825A1 HK 1045825 A1 HK1045825 A1 HK 1045825A1 HK 02107278 A HK02107278 A HK 02107278A HK 02107278 A HK02107278 A HK 02107278A HK 1045825 A1 HK1045825 A1 HK 1045825A1
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- molded article
- resin molded
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- Injection Moulding Of Plastics Or The Like (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
PROBLEM TO BE SOLVED: To provide a synthetic resin molding which makes an excellent back lighting possible even when the main body of the molding is made of an opaque or translucent synthetic resin. SOLUTION: The synthetic resin molding 1 is opaque or translucent, and the molding 1 capable of back lighting is constituted. A light transmitting window 8 (not always necessary for a translucent resin) is formed at a prescribed position of the molding 1, the window 8 is shielded by a synthetic resin sheet 5 which is welded/joined to the surface or back of the molding 1, and the molding 1 which makes back lighting possible in relation to light transmissible patterns and characters 3 which are printed on the sheet 5 is constituted.
Description
Technical Field
The present invention relates to a synthetic resin molded article having a heterogeneous surface layer or back surface layer of a printed surface which can be back-illuminated (printed patterns and characters can be seen brightly when viewed from the front after being irradiated with light from the back or lateral direction of the article).
Prior Art
In an instrument panel of an automobile, an air conditioner operation panel, a panel of an audio product, or the like, a pattern and characters printed on a front surface or a periphery thereof are made to transmit light by backlight illumination. Such patterns and characters are produced by printing on a synthetic resin plate or a synthetic resin molded article.
However, in the case of printing on a synthetic resin plate (hereinafter, simply referred to as a plate), a large-area plate printing can be used to produce a plurality of products, but in the case of printing on a synthetic resin molded product (hereinafter, simply referred to as a molded product), various problems occur.
That is, when a molded product is printed, the jig for fixing the molded product is complicated and expensive to manufacture, and a high-quality product cannot be obtained due to unevenness of the molded product, resulting in a low yield.
In addition, an operator is required about 2 times as much as printing of a plate.
Further, in the case of multi-color plate production, the molded article is damaged or the projecting portion is detached in the cleaning operation for removing dust.
Even if the molded product is flat, the molded product is slightly bent due to the influence of the jig kit, and the quality is deteriorated, which causes a decrease in yield.
Further, when the molded article is a single curved surface or a multi-curved surface, printing is impossible except for a special printing method called pad printing, but when the molded article is backlit by the pad printing, a pinhole appears in a pattern or a character of a projection, and light leakage such as starry sky occurs in other portions (many black spots) when the molded article is used for an instrument panel of an automobile, an air conditioner operation panel, an audio product, or the like, and there is a problem that the original purpose is difficult to achieve.
When printing is performed on a molded article, the following method is available in addition to the above-described molded article.
The first type is called a simultaneous transfer processing system (mold-in), which integrates a molding process and a copying and drawing process by positioning a copying foil in an injection molding die. In this method, only the ink film printed on the film is rewritten on the molded article at the time of molding, and therefore, the weld line or the sprue mark generated in the molded article cannot be covered, which causes a problem of appearance deterioration.
The second type is a so-called plate transfer system (thermal transfer) in which a printed portion (pattern) printed on a film is thermally transferred to a molded product by using a thermal printer. In this case, there is a problem that the molded product must be flat.
In order to solve the above problems, the present inventors have disclosed the following synthetic resin molded articles in Japanese patent application No. 63-129693 (patent No. 2127383).
Namely, a synthetic resin molding which is printed with a single ink film layer having a thickness of 4 mu or more or two or more ink film layers having a thickness of 8 mu or more and has a backlight illumination function and which has a heterogeneous surface layer or back layer welded to the surface or back surface of a synthetic resin sheet having a thickness of 0.1 to 2.0 mm.
The method for producing the back light-illuminable synthetic resin molded article comprises printing a synthetic resin sheet having a thickness of 0.1 to 2.0mm using a single ink film layer having a thickness of 4 mu or more or two or more ink film layers having a thickness of 8 mu or more, filling the resultant in a mold in a shape capable of being filled therein, filling the mold in a state adjacent to the inner surface of the mold, closing the mold, and injecting a molten resin into the mold to obtain the back light-illuminable synthetic resin molded article having a heterogeneous surface layer or back surface layer.
By using the synthetic resin molded article or the manufacturing method, a thick printed surface with thick ink film can be easily maintained on the side surface of the molded article, and a backlit molded article with a thick printed surface on the surface or the back surface of the molded article with a single curved surface or a multi-curved surface, on which an ink film layer is easily provided, can be manufactured with high productivity and low defect rate at low cost, and further a molded article with beautiful appearance without welding lines or injection port marks can be obtained.
Object of the Invention
However, in recent years, many molded articles using a black opaque resin are used for instrument panels of automobiles, operation panels for air conditioners, panels of audio products, and the like, and there is a problem that back lighting is not possible when the opaque resin is injection-molded over the entire surface of a synthetic resin plate.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a synthetic resin molded article having excellent back lighting even when the synthetic resin molded article is made of an opaque or translucent synthetic resin.
Technical scheme
In order to achieve the above object, the invention of claim 1 is a synthetic resin molded article, characterized in that the synthetic resin molded article has a surface layer or a back layer which is fusion-bonded and heterogeneous and is formed on the surface or back surface of a synthetic resin sheet having a thickness of 0.1 to 2.0mm, which is printed with a single ink film layer having a thickness of 4 μ or more or two or more ink film layers having a thickness of 8 μ or more, and is capable of being backlit, and the synthetic resin molded article is opaque or translucent and is capable of being backlit.
The invention according to claim 2 is the synthetic resin molded article according to claim 1, wherein a light-transmitting window is formed in a predetermined portion of the opaque or translucent synthetic resin molded article to perform backlight illumination.
The invention according to claim 3 is the synthetic resin molded article according to claim 1, wherein a light-transmitting window is formed in a predetermined portion of the opaque or translucent synthetic resin molded article, the light-transmitting window of the synthetic resin molded article is covered with a synthetic resin plate fusion-bonded to a surface or a back surface of the synthetic resin molded article, and a backlight can be provided for light-transmitting patterns and characters printed on the synthetic resin plate.
The invention according to claim 4 is the synthetic resin molded article according to claim 3, wherein the synthetic resin plate incompletely covers the light-transmitting window of the synthetic resin molded article, so that a part of light is transmitted, and the pattern and characters printed on the synthetic resin molded article are backlit so as to be opaque.
The invention of claim 5 relates to a method for producing a synthetic resin molded article, characterized in that a synthetic resin sheet having a thickness of 0.1 to 2.0mm is printed with a single ink film layer having a thickness of 4 μ or more or two or more ink film layers having a thickness of 8 μ or more, the printed ink film layers are processed into a shape capable of being filled in a mold, the mold is filled in a state of being adjacent to the inner surface of the mold, then the mold is closed, and a molten resin is injected into the mold to obtain a synthetic resin molded article capable of backlighting, wherein the molten resin is opaque or translucent, and a light-transmitting window is provided at a predetermined position of the synthetic resin molded article in accordance with the transparency of the resin.
The present invention according to claim 6 is the method for producing the synthetic resin molded article according to claim 5, wherein when the molten resin is translucent, no light-transmitting window is provided at a predetermined portion of the synthetic resin molded article.
The invention according to claim 7 is the method for producing the synthetic resin molded article according to claim 5 or 6, wherein the molten resin sheet is subjected to punching in a predetermined shape.
The synthetic resin molded article and the method for producing the same of the present invention will be described below.
The thickness of the synthetic resin plate used in the present invention must be 0.1mm to 2.0 mm.
When the thickness of the synthetic resin sheet is thinner than 0.1mm, the strength of the sheet when the sheet is loaded into a mold is poor, and the sheet may be misaligned with the surface of the mold due to the structure of the mold. In addition, the molten resin is partially melted due to its temperature, and its shape cannot be maintained.
When the thickness of the synthetic resin plate is larger than 2.0mm, there is no problem in loading the synthetic resin plate into a mold, but after printing on the plate, the synthetic resin plate is limited to a shape to be loaded into a mold, for example, when a die cutting type is used. Since the cutting is performed by a circular saw or the like, productivity is remarkably lowered, and the method is not preferable as an industrial production.
When the mold surface has a curved surface, a sheet thicker than 2.0mm cannot be adhered to the mold surface even when the molten resin is injection-molded, and thus a desired molded article cannot be obtained.
One of the major features of the present invention is that printing can be performed on the curved surface portion of a molded article having a curved surface, and it is not preferable to use a plate having a thickness of 2mm or more from this point of view.
When the synthetic resin plate is printed by screen printing, the thickness of the ink film used as a single layer must be 4 μm or more. This thickness is the thickness after drying the ink after printing.
In order to increase the thickness of the ink film, it is preferable to use a screen printing method. With other printing methods, only a thin ink film of 1 μ or less can be obtained by one printing. If the thickness of the ink film is less than 4 μ, pinholes will be generated and backlight illumination will not be possible.
When the printed portion is to be colored black to form a background color (when no pattern or character is present), two-layer overprinting is required, and it is necessary to form the ink film layer to be 8 μ or more. Since pinholes tend to occur only in a large-area substrate portion as compared with patterns or characters, light leakage tends to occur due to backlight illumination.
The printed synthetic resin sheet is processed into an opening of a mold so as to be loaded into the mold.
When the sheet is thin, the sheet is cut with scissors or a cutting machine (shearing), and when the sheet is thick, the sheet is cut with a circular saw, but the productivity cannot be improved. Therefore, it is necessary to attach a die for punching to a press machine and to perform a punching cutting process into a predetermined shape. The molded article is perforated with a punching die to punch holes having the same size and shape. The punching size of the printing plate varies depending on the requirements of the molded product.
When the printing plate is attached to the side surface of the molded product, the printing plate is punched out to have a predetermined size larger than the opening of the molding die, and when the printing plate is a square molded product, the printing plate is bent to have a box shape by cutting four corners and turning the side surface.
When the surface of the molded article and the surface of the printed board are the same in size, the printed board can be punched against the mold processing section.
In both cases, there is no problem with loading the printing plate on the mold. The same applies to the formation of holes in molded articles. At this time, the hole formed in the printing plate is formed to have the same size as the molding die.
When the molded resin surface is exposed on the periphery of the surface of the molded article, the printed board is processed to be reduced in the desired exposed size. At this time, the printing plate is loaded into the molding die, the center of the surface of the molding die and the center of the printing plate are kept in agreement, and the fine holes are provided in the molding die and connected to a vacuum generator to perform vacuum suction.
The printing plate is loaded in the mold, clamped, injected with molten resin, and molded as described above. In this case, the passage (injection port) for introducing the molten resin into the mold is preferably not perpendicular to the printing plate. If vertical, the printing plate is easily broken due to the temperature and pressure of the molten resin.
Drawings
Fig. 1 is a perspective view of an operation panel for an air conditioner for a vehicle, which is a specific example of the synthetic resin molded article of the present invention.
Fig. 2 is a perspective view of the operation panel for an air conditioner for a vehicle according to the present invention separated into a body panel and a synthetic resin plate.
Fig. 3 is a perspective view of the operation panel for an air conditioner for a vehicle and the body panel (not including the synthetic resin plate) of the present invention as viewed from the inside.
Fig. 4 is a rear view of a body panel (not including a synthetic resin plate) of the operation panel for an automobile air conditioner of the present invention.
Fig. 5 is a rear view showing a state where a synthetic resin plate is joined to a body panel of an operation panel for an automobile air conditioner according to the present invention.
Fig. 6 is a sectional view taken along the line a-a in fig. 1.
Fig. 7 is a partial cross-sectional view showing a mold for molding the synthetic resin molded article of the present invention, and showing a molding state of a portion corresponding to a dotted line B of 2 in fig. 6.
Description of the symbols
1 … air conditioner control panel (synthetic resin molding)
2 … hole
3 … Pattern and text
4 … disc body
5 … synthetic resin board
7 … reinforcing frame
8 … light-transmitting window
10 … mould
11 … molten resin
Examples
Hereinafter, a method for manufacturing the synthetic resin molded article of the present invention will be described with reference to an air conditioner control panel for an automobile as a specific example.
In order to attach switches (not shown) for adjusting the wind direction, temperature, and the like to the operation panel 1 for an automobile air conditioner shown in fig. 1, a plurality of holes 2 and 2 … are formed in the panel. Further, an L-shaped edge 2a is formed to protrude forward from the inner bottom of each hole 2, 2 ….
Further, in order to guide and operate the pattern and characters 3 of each button or the like, the pattern and characters 3 are printed on the holes 2 and 2 …, and backlight illumination is performed on the pattern and characters 3, whereby visibility of darkness at night or the like can be improved.
As shown in fig. 2, the air conditioning control panel 1 is composed of a panel body 4 made of a synthetic resin molded product and a synthetic resin plate 5 welded to the surface of the panel body 4, and the synthetic resin plate 5 is printed with the above-mentioned pattern and characters 3 and a covering portion other than the pattern and characters 3.
The disc main body 4 has a plurality of holes 2 and 2 … for attaching the various switches as described above, and as shown in fig. 3, a reinforcing frame 7 is formed to protrude from the inner periphery of the disc main body 4, a plurality of reinforcing ribs 7a and 7a … are formed on the inner side of the reinforcing frame 7, and protruding pieces 7b and 7b … for attaching the disc main body 4 to a predetermined position of the automobile are formed.
As shown in fig. 6 (a-a cross-sectional view of fig. 1), the disc body 4 is formed with a slightly curved surface around each hole 2 so as to be inclined toward the hole 2. Therefore, as shown in fig. 2, holes 2 and 2 … are formed in the inner surface of the synthetic resin plate 5 welded to the surface of the disk body 4 at positions and shapes corresponding to the respective holes 2 and 2 … of the disk body 4, and as shown in fig. 6, the synthetic resin plate 5 is formed by extrusion processing so as to fit the curved surface of the disk body 4.
As shown in fig. 1, the synthetic resin plate 5 is used in a thickness of 0.1mm to 2.0mm, and is formed to have a size smaller than the entire surface size of the operation panel main body 4, thereby exposing the peripheral portion of the panel main body 4.
When the air conditioning control panel 1 configured as described above is backlit, the light from the rear is directed to the region other than the pattern and the characters 3 on the region where the light is transmitted forward, and it is necessary to apply the light to shield the light.
However, when the disk main body 4 is formed of an opaque molten resin such as black, it is necessary to backlight the light-permeable portion. Therefore, in the present embodiment, as shown in fig. 5, arc-shaped light-transmitting windows 8 and 8 … as shown in fig. 4 are formed around the holes 2 and 2 … of the operation panel body 4 at positions corresponding to the positions where the patterns and characters 3 of the synthetic resin plate 5 are formed, so that backlight illumination is performed.
When the molten resin of the tray main body 4 is black, the operation (coating or the like) of mixing the color of the nameplate having black as the ground color with the color of the resin is not necessary, and the cost is reduced.
Further, when the operation panel body 4 is formed of an opaque molten resin such as black, it is not necessary to design a cover for light leakage in backlight illumination.
When a molten resin that is not completely opaque but translucent is used as the molten resin, the light-transmitting window may not be provided, but printing must be performed on the disk body 4 in order to adjust the amount of backlight illumination. However, in the present invention, depending on the transparency of the molten resin, printing from 1 to several times may be omitted.
In the synthetic resin plate 5, the pattern and characters 3 are formed by printing with transparency, and the periphery thereof is printed in the same black as the disk body 4 so that the pattern and characters 3 are clearly visible.
In this printing, in order to eliminate light leakage during backlight, two-layer screen printing is performed on the inner surface or the surface of the synthetic resin plate 5, or even on both surfaces thereof, and the ink film layer is formed to be 8 μ or more to prevent the occurrence of pinholes.
In order to load the synthetic resin sheet 5 having the predetermined printed shape into the molding die 10 shown in fig. 7, the die 10 is formed from the surface of the synthetic resin sheet 5 and the entire shape of the disk body 4, and is cut into a predetermined shape by punching, and the synthetic resin sheet 5 having been punched is brought into abutment with the surface inside the die 10.
Then, as shown in fig. 7, after the mold 10 is closed, the black molten resin 11 is introduced from the injection molding nozzle 13 provided in the mold 10 into the main runner 14, and the molten resin 11 is injected into the mold 10 through the injection port 15, whereby the tray main body 4 is welded to the inner surface of the synthetic resin plate 5.
Effects of the invention
The present invention has the above-described configuration, and therefore has the following advantageous effects.
(1) Simplicity of the technique
The present invention relates to a very simple technique for obtaining a backlight-illuminable molded article by filling a printed synthetic resin sheet into a molding die and injecting a molten resin into the die. The printing surface having a thick ink film layer is easily maintained even on the side surface of the molded article, and the molding die of the plate is easily loaded during molding.
(2) Curved printed matter capable of being made into backlight illumination
A printed surface on which a thick ink film is easily formed is provided on the surface or inner surface of a molded article having a single curved surface or a plurality of curved surfaces, and backlight illumination can be performed.
(3) High productivity
The productivity is several times higher than that when printing directly on a molded product.
(4) Low defective rate
Compared with the case of printing directly on the molded product, the product has extremely low defective rate.
(5) Low cost
A plurality of the molded articles can be printed at the same time, as compared with the case of directly printing on each molded article, thereby reducing the cost.
(6) Beauty of appearance
The weld line and sprue mark, which are common in the method of directly printing a molded article or copying an ink film from a printed film onto a molded article, are not seen, and the molded article has an excellent beautiful appearance.
Further, in the present invention, the light-transmitting window is formed at a predetermined position of the opaque or translucent synthetic resin molded article, and the light-transmitting window of the molded article is covered by the synthetic resin plate welded to the front or rear surface of the molded article, and the light-transmitting pattern or character printed on the synthetic resin plate can be backlit, so that the molded article having a structure capable of backlighting even if it is opaque or translucent can be obtained.
When the synthetic resin plate does not completely cover the light-transmitting window of the molded article (i.e., the light transmittance is less than 100%), the synthetic resin plate may be configured so that the synthetic resin plate can be backlit by providing opaque patterns and characters, or so that the patterns and characters are raised upward.
In this configuration, when the molded article is formed from the opaque molten resin, coating for shielding light during backlight is not necessary, and coating equipment is not necessary, so that cost can be reduced.
Further, when black is used as the molten resin of the molded article, it is not necessary to perform an operation (coating or the like) of mixing the color of the nameplate having black as the ground color with the color of the resin, and the cost can be reduced.
Further, when a molded article is formed from an opaque molten resin such as black, it is not necessary to design a cover for light leakage during backlight illumination.
Further, when an opaque resin is used as the molten resin of the molded article, a recycled material can be used to reduce the cost.
Claims (7)
1. A synthetic resin molded article which is printed with a single ink film layer having a thickness of 4 mu or more or two or more ink film layers having a thickness of 8 mu or more and which can be backlit and has a heterogeneous surface layer or back layer welded and bonded to the surface or back surface of a synthetic resin sheet having a thickness of 0.1 to 2.0mm, characterized in that the synthetic resin molded article is opaque or translucent and can be backlit.
2. The synthetic resin molded article according to claim 1, wherein a light-transmitting window is formed at a predetermined portion of the opaque or translucent synthetic resin molded article to perform backlight illumination.
3. The synthetic resin molded article according to claim 1, wherein a light-transmitting window is formed in a predetermined portion of the opaque or translucent synthetic resin molded article, the light-transmitting window of the synthetic resin molded article is covered by a synthetic resin plate fusion-bonded to a surface or a back surface of the synthetic resin molded article, and a backlight is provided for a light-transmitting pattern or character printed on the synthetic resin plate.
4. The synthetic resin molded article according to claim 1, wherein the synthetic resin plate of claim 3 does not completely cover the light-transmitting window of the synthetic resin molded article, so that a part of light is transmitted, and the pattern and characters printed on the synthetic resin molded article are back-lit in an opaque manner.
5. A method for producing a synthetic resin molded article capable of backlighting, which comprises printing a synthetic resin sheet having a thickness of 0.1 to 2.0mm using a single ink film layer having a thickness of 4 mu or more or two or more ink film layers having a thickness of 8 mu or more, filling the printed synthetic resin sheet in a mold in a shape capable of being filled therein, closing the mold, and injecting a molten resin into the mold to obtain a synthetic resin molded article capable of backlighting having a heterogeneous surface layer or back layer, wherein an opaque or translucent resin is used as the molten resin, and a light-transmitting window is provided at a predetermined position of the synthetic resin molded article in accordance with the transparency of the resin.
6. The method for producing a synthetic resin molded article according to claim 5, wherein when the molten resin is translucent, no light-transmitting window is provided at a predetermined portion of the synthetic resin molded article.
7. The method of producing a synthetic resin molded article according to claim 5 or 6, wherein the molten resin plate is subjected to punching of a predetermined shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP379319/2000 | 2000-12-13 | ||
| JP2000379319A JP3740558B2 (en) | 2000-12-13 | 2000-12-13 | Synthetic resin molded product and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HK1045825A1 true HK1045825A1 (en) | 2002-12-13 |
| HK1045825B HK1045825B (en) | 2006-01-06 |
Family
ID=18847714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK02107278.6A HK1045825B (en) | 2000-12-13 | 2002-10-03 | Molded article of synthetic resin and process for producing the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3740558B2 (en) |
| CN (1) | CN1217776C (en) |
| HK (1) | HK1045825B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005074743A (en) * | 2003-08-29 | 2005-03-24 | Sakaiya Meihan Kk | Shaped processed product of synthetic resin sheet and its processing method |
| JP3988082B2 (en) * | 2004-02-12 | 2007-10-10 | 株式会社サカイヤ | Synthetic resin molded product and method for producing the same |
| JP4742341B2 (en) * | 2005-11-07 | 2011-08-10 | 株式会社サカイヤ | Manufacturing method of ring-integrated display panel |
| DE102006053043A1 (en) * | 2006-11-10 | 2008-05-15 | Leopold Kostal Gmbh & Co. Kg | Operating unit for a motor vehicle |
| JP5249731B2 (en) * | 2008-12-01 | 2013-07-31 | 株式会社サカイヤ | Synthetic resin molded parts with changing design surfaces |
| CN103448329B (en) * | 2012-05-31 | 2015-12-16 | 珠海格力电器股份有限公司 | Multilayer structure decoration and air conditioner indoor unit |
| CN102853334B (en) * | 2012-08-01 | 2014-12-03 | 杭州广安汽车电器有限公司 | Backlight indicator used by controller and provided with correction film and manufacture method thereof |
| JP6976917B2 (en) * | 2018-09-25 | 2021-12-08 | ダイハツ工業株式会社 | Resin molding member |
| JP7506942B1 (en) * | 2023-05-31 | 2024-06-27 | 株式会社浅野研究所 | Thermoforming method and apparatus, thermoformed product |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256984A (en) * | 1987-04-15 | 1988-10-24 | サカエ理研工業株式会社 | Light transmission display body and molding thereof |
| JPH01299016A (en) * | 1988-05-26 | 1989-12-01 | Sakaiya Meihan Kk | Synthetic resin molded products and their manufacturing method |
| JP2969190B2 (en) * | 1992-03-25 | 1999-11-02 | サカイヤ銘版株式会社 | Synthetic resin molded product and method for producing the same |
| JPH0997026A (en) * | 1995-09-29 | 1997-04-08 | Nissha Printing Co Ltd | Display panel and its production |
-
2000
- 2000-12-13 JP JP2000379319A patent/JP3740558B2/en not_active Expired - Lifetime
-
2001
- 2001-11-13 CN CN 01134698 patent/CN1217776C/en not_active Expired - Lifetime
-
2002
- 2002-10-03 HK HK02107278.6A patent/HK1045825B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1357441A (en) | 2002-07-10 |
| JP2002178362A (en) | 2002-06-26 |
| HK1045825B (en) | 2006-01-06 |
| CN1217776C (en) | 2005-09-07 |
| JP3740558B2 (en) | 2006-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20161113 |