WO2005095082A1 - ディスク成形用金型、鏡面板及び成形品 - Google Patents
ディスク成形用金型、鏡面板及び成形品 Download PDFInfo
- Publication number
- WO2005095082A1 WO2005095082A1 PCT/JP2005/006047 JP2005006047W WO2005095082A1 WO 2005095082 A1 WO2005095082 A1 WO 2005095082A1 JP 2005006047 W JP2005006047 W JP 2005006047W WO 2005095082 A1 WO2005095082 A1 WO 2005095082A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mirror
- plate
- region
- bush
- area
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
- B29C2045/2661—The thickness of the mould cavity being changeable in radial direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
- B29C2045/2667—Particular inner or outer peripheral portions of the substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
Definitions
- the present invention relates to a disk molding die, a mirror plate, and a molded product.
- FIG. 1 is a cross-sectional view of a conventional disk molding die.
- 11 is a fixed platen
- 12 is a fixed mold assembly attached to the fixed platen
- 32 is a movable mold assembly attached to a movable platen (not shown).
- the disk assemblies 12 and 32 constitute a disk forming die.
- the side closer to the cavity space (not shown) formed between the die assemblies 12 and 32 is set as the front side, and is separated from the cavity space.
- the side is the rear.
- the side closer to the cavity space is defined as the front side
- the side apart from the cavity space force is defined as the rear side.
- a mold clamping mechanism (not shown) is provided behind the movable platen.
- the movable platen is moved forward and backward, and the mold assembly 32 is moved forward and backward, and the mold is moved.
- the mold for the disk molding die can be closed, clamped and opened. Then, when the mold is clamped, the cavity space is formed.
- the mold assembly 12 includes a base plate 15, a mirror plate 16 attached to the base plate 15, and an annular guide ring 18 attached to the base plate 15 radially outward from the mirror plate 16.
- a sprue bush 19 extending forward through the base plate 15 and the mirror plate 16, a tube surrounding the outer periphery of the front half of the sprue bush 19, with the front end facing the cavity space
- Inner stamper foot 21 An annular cap ring 22 protruding toward the mold assembly 32 near the outer peripheral edge of the mirror plate 16, a stamper 23 attached to the front end face of the mirror plate 16, and the like are provided.
- the stamper 23 is attached so that the inner peripheral edge is pressed by the inner stamper retainer 21 and the outer peripheral edge is pressed against the mirror plate 16 by the cavity ring 22.
- a prototype substrate is formed as a preliminary molded product serving as a prototype of the disk substrate.
- a minute surface is formed on one surface of the disk substrate.
- the uneven surface is formed, and the information surface is formed.
- a fine pattern having a small uneven force is formed on the front end face of the stamper 23.
- the cap ring 22 is provided to press the outer peripheral edge of the stamper 23 against the mirror plate 16 and to define the outer peripheral edge of the prototype substrate in the cavity space.
- a sprue 26 for passing the resin injected from the injection nozzle 25 of the injection device 24 is formed.
- the sprue bush 19 is disposed with its front end facing the cavity space, and a die 28 having a concave portion is formed at the front end.
- the mold assembly 32 includes a base plate (not shown), an intermediate plate 33 attached to the base plate, a mirror plate 36 attached to the intermediate plate 33, and a radially outer side of the mirror plate 36.
- the cut guide extends through the annular guide ring 38 attached to the intermediate plate 33, the base plate, the intermediate plate 33, and the mirror plate 36, and is disposed so as to be able to advance and retreat in opposition to the sprue bush 19.
- the punch 43 surrounds the cut punch 43, extends through the base plate, the intermediate plate 33, and the mirror plate 36, and is provided with a cylindrical ejector rod 44, which is provided to be able to move forward and backward.
- the front end of the cut punch 43 has a shape corresponding to the die 28.
- An annular concave portion 48 for accommodating the capillary 22 is formed on the outer peripheral edge of the front end surface of the mirror plate 36.
- the movable clamp is operated by operating the mold clamping mechanism.
- the mold clamping mechanism is further operated to perform mold clamping, thereby forming a cavity space between the mold assemblies 12 and 32.
- the melted resin is cast via the sprue 26.
- a prototype substrate is formed.
- temperature control channels 51 and 52 are formed in the mirror plates 16 and 36, respectively, and temperature control channels 51 and 52 are formed in the temperature control channels 51 and 52, respectively. Of water is supplied.
- the mold clamping mechanism is operated, the movable platen is retracted, the mold assembly 32 is retracted, and the mold is opened to release the disk substrate from the stamper 23.
- the ejector rod 44 is advanced, and the disk substrate is protruded and released from the mold assembly 32. Thus, the disk substrate can be taken out.
- annular projection is formed at a portion corresponding to the groove 54 on the disk substrate, and the projection is formed between the disk substrates when a plurality of disk substrates are stacked. It becomes a stack rib for forming a small gap. Further, in the disk substrate, a portion where the hole processing is performed, that is, a region from the inner peripheral edge of the hole portion to the stack rib is used for fixing the disk substrate when the disk substrate is set on the player.
- the area from the stack rib cover to the outer peripheral edge of the disk substrate becomes a signal area where the fine pattern is transferred by the stamper 23. Therefore, on the front end face of the mold assembly 32, a region a from the inner peripheral edge of the flange 47 to the groove 54 is formed radially outward from the groove 54 to form a clamp area. Region b is set to form a signal area.
- the temperature control channels 51 and 52 are formed, and the resin and the prototype substrate in the cavity space are connected to the temperature control channel 5. It is cooled by the water flowing inside 1,52.
- the bush 45 is disposed in the vicinity of the hole in the prototype substrate, so that the prototype substrate is sufficiently cooled. Can not do it. Therefore, it is conceivable that a temperature control flow path is formed in the bush 45 and the prototype substrate is cooled through the bush 45. Unlike the cooling capability of the bush 45 and the cooling capability of the mirror plate 36, the prototype substrate is made uniform. Cannot be cooled.
- the front end face of the bush 45 is slightly protruded from the front end face of the mirror surface plate 36, and the inner peripheral edge of the disk substrate is The vicinity is formed thinner than other parts.
- Patent Document 1 JP-A-2002-222545
- the front end face of the bush 45 is slightly protruded from the front end face of the mirror plate 36, so that a step is formed on the outer peripheral edge of the bush 45. Will be done. Therefore, a printing area is formed on the surface of the disk substrate on the mold assembly 32 side, but printing unevenness due to the step occurs in the printing area.
- the present invention solves the problems of the conventional disk molding die described above, can cool the molded product uniformly, and does not cause printing unevenness in the printing area of the molded product.
- An object is to provide a molding die, a mirror plate, and a molded product.
- the first mold plate, the first mirror plate attached to the first mold plate, and the first mold plate A second mold plate arranged to be able to advance and retreat, and a second mirror plate attached to the second mold plate and forming a cavity space between the second mold plate and the first mirror plate in a mold clamped state.
- a stamper attached to one of the first and second mirror plates and having a fine pattern formed on a front end surface thereof; A bush disposed through the other of the first and second mirror plates.
- the bush is disposed radially inward of a region for forming a clamp area on a front end surface of the other mirror surface plate.
- the first mold plate, the first mirror plate attached to the first mold plate, and the first mold plate A second mold plate that is provided to be able to advance and retreat, and a second mirror plate that is attached to the second mold plate and forms a cavity between the first mirror plate in a mold clamped state. And one of the first and second mirror plates.
- the stamper includes a stamper having a fine pattern formed on a front end face thereof, and a bush disposed through the other of the first and second mirror plates.
- the bush is disposed radially inward of an area for forming a clamp area on the front end face of the other mirror surface plate.
- the bush is disposed radially inward of a region for forming a clamp area near the front end surface of the other mirror surface plate, the area of the front end surface of the bush is reduced. It gets smaller. Therefore, the molded article can be sufficiently cooled.
- the pressing force since the vicinity of the inner peripheral edge of the hole of the molded product is in direct contact with the other mirror plate as in the other portions, heat is directly transmitted to the other mirror plate.
- the molded article can be cooled uniformly. As a result, it is possible to suppress the occurrence of a temperature difference between the vicinity of the inner peripheral edge of the hole portion of the molded product and the other portions. The difference in the amount of shrinkage between the vicinity of the inner peripheral edge and the other portions can be suppressed, and the molded article can be prevented from being deformed. In addition, since the ability to cool the vicinity of the inner peripheral edge of the hole portion of the molded article is increased, the ability to cool the entire molded article can be increased, so that the molding cycle can be shortened.
- FIG. 1 is a cross-sectional view of a conventional disk molding die.
- FIG. 2 is a cross-sectional view showing a main part of a disk molding die according to the first embodiment of the present invention. It is.
- FIG. 3 is a cross-sectional view of a disk molding die according to the first embodiment of the present invention.
- FIG. 4 is a cross-sectional view showing a main part of a disk molding die according to a second embodiment of the present invention.
- FIG. 5 is a cross-sectional view showing a main part of a disk molding die according to a third embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a main part of the disk molding die according to the first embodiment of the present invention
- FIG. 3 is a cross-sectional view of the disk molding die according to the first embodiment of the present invention. It is.
- 11 is a fixed platen as a first support member
- 12 is the fixed platen 1
- the fixed-side mold assembly attached to 1, 32 is not shown as a second support member.
- a disk molding die is formed.
- the die assembly 12 side is not shown between the die assemblies 12 and 32! / ⁇
- the near side to the cavity space is the front.
- the side away from the cavity space is the rear.
- the side closer to the cavity space is defined as the front.
- the side away from the cavity space is the rear.
- a mold clamping mechanism (not shown) is provided, and by operating the mold clamping mechanism, the movable platen is moved forward and backward, and the mold assembly 32 is moved forward and backward to form a mold.
- the mold for the disk molding die can be closed, clamped and opened. Then, when the mold is clamped, the cavity space is formed.
- the fixed platen 11, the movable platen and the mold clamping mechanism constitute a mold clamping device.
- the mold assembly 12 includes a base plate 15 as a first template, a mirror plate 16 as a first mirror plate attached to the base plate 15, and a radially outward plate from the mirror plate 16.
- An annular guide ring 18 attached to the base plate 15, a sprue bush 19 extending forward through the base plate 15 and the mirror plate 16, and surrounding the outer periphery of the front half of the sprue bush 19.
- a cylindrical inner stamper retainer 21 arranged with its front end facing the cavity space, and an annular cap ring 22 formed by projecting toward the mold assembly 32 near the outer peripheral edge of the mirror plate 16.
- a stamper 23 as a nest attached to the front end face of the mirror plate 16. The stamper 23 is attached so that the inner peripheral edge is pressed against the mirror plate 16 by the inner stamper retainer 21 and the outer peripheral edge is pressed by the cap ring 22.
- a prototype substrate as a preliminary molded product serving as a prototype of the disk substrate is formed.
- minute irregularities are formed to form an information surface.
- a fine pattern having a small uneven force is formed on the front end face of the stamper 23, and the cavity is filled with resin and cooled, and the fine pattern is transferred to the resin with cooling.
- the information surface is formed.
- the cap 22 is provided to press the outer edge of the stamper 23 against the mirror plate 16 and to define the outer edge of the prototype substrate in the cavity.
- the cap ring 22 and the stamper 23 can be arranged on the side of the mold assembly 32 which is arranged on the side of the mold assembly 12.
- the fuel was injected from the injection nozzle 25 of the injection device 24.
- a sprue 26 is formed to pass the fat.
- the sprue bush 19 is disposed with its front end facing the cavity space, and a die 28 having a concave portion is formed at the front end.
- the mold assembly 32 includes a base plate (not shown), an intermediate plate 33 attached to the base plate, a mirror plate 36 as a second mirror plate attached to the intermediate plate 33, Radially outward from the mirror plate 36, the ring extends through the annular guide ring 38 attached to the intermediate plate 33, the base plate, the intermediate plate 33, and the mirror plate 36, and moves forward and backward in opposition to the sprue bush 19.
- a cut punch 43 as a caroe member that is freely disposed, a cylindrical punch that surrounds the cut punch 43, extends through the base plate, the intermediate plate 33, and the mirror plate 36, and is disposed to be able to move forward and backward.
- An ejector rod 44 as a protruding member, and a cylindrical bush 55 surrounding the outer periphery of the front half of the ejector rod 44 and penetrating through the mirror surface plate 36 are provided.
- the bush 55 has a small diameter portion 56 as a front end portion having an outer diameter of, for example, 20 [mm] near the front end.
- a through-hole hi is formed in the mirror plate 36 to allow the bush 55 to pass therethrough.
- the outer periphery of the front end face of the mirror plate 36 is provided with the cap 22
- An annular recess 48 for accommodating therein is formed.
- the front end of the cut punch 43 has a shape corresponding to the die 28.
- the base plate and the intermediate plate 33 constitute a second template.
- the bush 55 can be disposed on the side of the mold assembly 12 which is arranged on the side of the mold assembly 32.
- the mold clamping mechanism is actuated, the movable platen is retracted, the mold assembly 32 is retracted, and the mold is opened to release the disk substrate from the stamper 23.
- the ejector rod 44 is advanced, and the disk substrate is protruded and released from the mold assembly 32. Thus, the disk substrate can be taken out.
- temperature control channels 51 and 52 are formed, and the resin and the prototype substrate in the cavity space are connected to water flowing in the temperature control channels 51 and 52. Accordingly, on the mold assembly 32 side, the cut punch 43, the ejector rod 44, the bush 55, and the like are provided near the hole of the prototype substrate. In some cases, the resin and the prototype substrate cannot be cooled sufficiently.
- the small-diameter portion 56 is formed near the front end of the bush 55, and the inner peripheral edge of the through hole hi at the front end of the mirror plate 36 extends over a predetermined distance. Protruding toward the center, an annular protrusion 61 is formed. In this case, it is possible to prevent the ability to cool the resin and the prototype substrate from being reduced by the reduction in the area force S of the front end surface of the bush 55. As for the force, since the vicinity of the inner peripheral edge of the hole portion of the prototype substrate is in direct contact with the mirror plate 36 as in the other portions, heat is directly transmitted to the mirror plate 36.
- the prototype substrate can be cooled uniformly, it is possible to suppress the occurrence of a temperature difference between the vicinity of the inner peripheral edge of the hole portion of the prototype substrate and other portions. As a result, when the disk substrate is removed from the disk molding die, it is possible to suppress a difference in the amount of shrinkage between the vicinity of the inner peripheral edge of the hole portion and the other portions, and the disk substrate is deformed. Can be prevented.
- the ability to cool the vicinity of the inner peripheral edge of the hole portion of the prototype substrate is increased, the ability to cool the entire prototype substrate can be increased, so that the molding cycle can be shortened. By the way, a region from the inner peripheral edge of the hole portion of the disc substrate to a predetermined portion is formed as a flat clamp area for fixing the disc substrate when setting it on the player.
- a predetermined area from the inner peripheral edge of the projection 61, that is, the outer peripheral edge of the small-diameter portion 56 radially outward is set to form the clamp area. Then, the front end face of the small diameter portion 56 is set radially inward of the region c, and a fitting portion between the bush 55 and the mirror plate 36 is formed.
- the area up to the outer peripheral edge of the clamp area force on the disk substrate becomes a signal area where a fine pattern is transferred by the stamper 23, and therefore, is located radially outward from the outer peripheral edge of the area c.
- the other area d is set to form the signal area.
- the first area is constituted by the area c
- the second area is constituted by the area d.
- front end face of the small-diameter portion 56 and the front end face of the area c are slightly protruded from the front end face of the area d to form a step of 10 to 60 m]. Is made thinner than the other parts.
- the resin and the prototype substrate can be rapidly cooled by a small amount in the vicinity of the inner peripheral edge, and the ability to cool the resin and the prototype substrate can be further prevented from being reduced. it can. As a result, the resin and the prototype substrate can be more uniformly cooled.
- an annular groove 58 is formed immediately radially outward of the region c, that is, between the regions d. Therefore, on the disc substrate, a portion corresponding to the groove 58 is formed as an annular protruding S-stack rib.
- the clamp c Since it is necessary to form a signal area by the region d on the rear side, it is necessary to apply a mirror surface to each of the regions d.
- it is difficult to mirror-finish the base of the step which increases the cost of the disk molding die. I will.
- a groove 58 for forming a stack rib is formed between the regions d, and it is not necessary to apply a mirror surface force to the groove 58. Area d can be easily mirror-finished.
- the region c can be formed radially inward as much as the outer diameter of the small diameter portion 56 can be reduced, and the step can also be formed radially inward. Therefore, although a printing area is formed on the surface of the disk substrate on the side of the mold assembly 32, no step is formed in the printing area, so that printing unevenness does not occur.
- FIG. 4 is a sectional view showing a main part of a disk molding die according to a second embodiment of the present invention.
- a flat clamp area in order to fix the disk substrate as the final molded product to the player, so that the projection at the front end face of the mirror plate 36 as the second mirror plate is required.
- a fitting portion between the bush 55 and the mirror plate 36 is formed radially inward of the region c.
- annular groove 58 is formed on the front end face of the mirror surface plate 36 immediately radially outward of the area c and adjacent to the outer peripheral edge of the area c. Therefore, on the disc substrate, a portion corresponding to the groove 58 is formed as an annular projecting force stack rib. [0055] Then, a region d further outward in the radial direction than the position immediately outward of the groove 58 in the radial direction is set to form a signal area.
- the front end face of the area e from the front end face of the small diameter portion 56 and the inner peripheral edge of the projection 61 to the inner peripheral edge of the area d is slightly protruded from the front end face of the area d by 10 to A step of 60 m] is formed, and the vicinity of the inner peripheral edge of the disk substrate is formed thinner than other portions.
- the second area is constituted by the first area force area d by the area e.
- FIG. 5 is a sectional view showing a main part of a disk molding die according to a third embodiment of the present invention.
- An annular groove 58 is formed on the front end face of the mirror plate 36 near the radial outside of the area c at a slight distance from the outer peripheral edge of the area c. Therefore, an annular protruding force stack rib is formed in a portion corresponding to the groove 58 in front of the disk substrate.
- the front end face of the small diameter portion 56 and the front end face of the area c are slightly protruded from the outer peripheral edge of the area c to the front end face of the area f of the radial direction report to be 10 to 60 ⁇ m.
- Forming a step, said The vicinity of the inner peripheral edge of the disk substrate is formed thinner than other portions.
- the first area is defined by the area c
- the second area is defined by the area f.
- the present invention is not limited to the above-described embodiment, but can be variously modified based on the gist of the present invention, and does not exclude the scope of the present invention.
- the present invention can be applied to an injection molding machine for molding a disk substrate.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006511716A JP4768607B2 (ja) | 2004-03-31 | 2005-03-30 | ディスク成形用金型、鏡面板及び成形品 |
US10/594,508 US20070275115A1 (en) | 2004-03-31 | 2005-03-30 | Mold For Molding Disk, Mirror-Surface Disk, And Molded Product |
EP05727918A EP1731287A4 (en) | 2004-03-31 | 2005-03-30 | DISC SHAPE TOOL, MIRROR SURFACE PLATE AND SHAPED OBJECT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-104288 | 2004-03-31 | ||
JP2004104288 | 2004-03-31 |
Publications (1)
Publication Number | Publication Date |
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WO2005095082A1 true WO2005095082A1 (ja) | 2005-10-13 |
Family
ID=35063603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/006047 WO2005095082A1 (ja) | 2004-03-31 | 2005-03-30 | ディスク成形用金型、鏡面板及び成形品 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070275115A1 (ja) |
EP (1) | EP1731287A4 (ja) |
JP (1) | JP4768607B2 (ja) |
KR (1) | KR100818580B1 (ja) |
CN (1) | CN1938141A (ja) |
TW (1) | TW200532681A (ja) |
WO (1) | WO2005095082A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007144880A (ja) * | 2005-11-29 | 2007-06-14 | Seikoh Giken Co Ltd | 金型装置及び鏡面盤 |
CN112743624B (zh) * | 2020-12-14 | 2022-05-20 | 亚普汽车部件股份有限公司 | 一种中空体夹边孔成型辅助机构及成型方法 |
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JP3294971B2 (ja) * | 1995-08-07 | 2002-06-24 | 株式会社名機製作所 | ディスク基板およびその成形用型 |
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JPH11265526A (ja) * | 1998-03-17 | 1999-09-28 | Sony Corp | 円盤状記録媒体及びその製造方法 |
US6325614B1 (en) * | 1998-04-24 | 2001-12-04 | Husky Injection Molding | Mold element retaining and releasing mechanism |
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2005
- 2005-03-30 KR KR1020067020333A patent/KR100818580B1/ko not_active IP Right Cessation
- 2005-03-30 EP EP05727918A patent/EP1731287A4/en not_active Withdrawn
- 2005-03-30 CN CNA2005800101961A patent/CN1938141A/zh active Pending
- 2005-03-30 JP JP2006511716A patent/JP4768607B2/ja not_active Expired - Fee Related
- 2005-03-30 US US10/594,508 patent/US20070275115A1/en not_active Abandoned
- 2005-03-30 WO PCT/JP2005/006047 patent/WO2005095082A1/ja not_active Application Discontinuation
- 2005-03-31 TW TW094110303A patent/TW200532681A/zh not_active IP Right Cessation
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EP0659532A2 (en) | 1993-12-24 | 1995-06-28 | Kabushiki Kaisha Meiki Seisakusho | Sprueless disc mold and disc molding method thereof |
JPH11198186A (ja) | 1998-01-19 | 1999-07-27 | Meiki Co Ltd | 光ディスク成形品の成形用金型 |
JP2001096595A (ja) * | 1999-09-30 | 2001-04-10 | Seikoh Giken Co Ltd | ディスク成形金型 |
JP2001150488A (ja) | 1999-11-24 | 2001-06-05 | Matsushita Electric Ind Co Ltd | 射出成形用金型およびスタンパの取り付け方法 |
JP2004148667A (ja) * | 2002-10-30 | 2004-05-27 | Meiki Co Ltd | ディスク基板の成形用金型 |
Non-Patent Citations (1)
Title |
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See also references of EP1731287A4 |
Also Published As
Publication number | Publication date |
---|---|
JP4768607B2 (ja) | 2011-09-07 |
TWI296410B (ja) | 2008-05-01 |
JPWO2005095082A1 (ja) | 2008-02-21 |
TW200532681A (en) | 2005-10-01 |
EP1731287A4 (en) | 2009-11-11 |
EP1731287A1 (en) | 2006-12-13 |
CN1938141A (zh) | 2007-03-28 |
KR100818580B1 (ko) | 2008-04-02 |
US20070275115A1 (en) | 2007-11-29 |
KR20060130698A (ko) | 2006-12-19 |
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