WO2003042995A1 - Metal mold device for manufacturing disk-like substrate material, method of manufacturing disk-like substrate material, disk-like substrate material for optical disk, and optical disk - Google Patents
Metal mold device for manufacturing disk-like substrate material, method of manufacturing disk-like substrate material, disk-like substrate material for optical disk, and optical disk Download PDFInfo
- Publication number
- WO2003042995A1 WO2003042995A1 PCT/JP2002/011810 JP0211810W WO03042995A1 WO 2003042995 A1 WO2003042995 A1 WO 2003042995A1 JP 0211810 W JP0211810 W JP 0211810W WO 03042995 A1 WO03042995 A1 WO 03042995A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- substrate material
- manufacturing
- metal mold
- optical disk
- 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
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/005—Moulds or cores; Details thereof or accessories therefor characterised by the location of the parting line of the mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
- B29D17/005—Producing optically read record carriers, e.g. optical discs
-
- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A metal mold device (30) capable of forming a disk-like substrate material for an optical disk with a center hole so that a resin layer with uniform thickness distribution can be formed thereon, a stamper (10) is held on a movable metal mold (34) by a sucking means (36) in a cavity (31), a through-hole (10A) smaller in diameter than the center hole of the optical disk is formed in the stamper (10), and a metal mold split line and a step are not present at the portion of the information recording surface (12A) of the disk-like substrate material (12) formed by injection molding corresponding to an area ranging from the outer periphery of the stamper (10) to the through-hole (10A).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001346475A JP2003151174A (en) | 2001-11-12 | 2001-11-12 | Disk substrate material for optical disk |
JP2001/346475 | 2001-11-12 | ||
JP2001/359714 | 2001-11-26 | ||
JP2001359714A JP2003154557A (en) | 2001-11-26 | 2001-11-26 | Die device for manufacturing disk-like base material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003042995A1 true WO2003042995A1 (en) | 2003-05-22 |
Family
ID=26624485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/011810 WO2003042995A1 (en) | 2001-11-12 | 2002-11-12 | Metal mold device for manufacturing disk-like substrate material, method of manufacturing disk-like substrate material, disk-like substrate material for optical disk, and optical disk |
Country Status (2)
Country | Link |
---|---|
TW (1) | TW200300552A (en) |
WO (1) | WO2003042995A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112397097B (en) * | 2020-11-30 | 2021-10-15 | 北京中科开迪软件有限公司 | Optical disk die assembly for optical disk production and use method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01285321A (en) * | 1988-05-12 | 1989-11-16 | Nec Corp | Injection mold |
JPH02110840A (en) * | 1988-10-19 | 1990-04-24 | Hitachi Ltd | Optical disk and its forming metallic die |
JPH0831023A (en) * | 1994-07-12 | 1996-02-02 | Sanyo Electric Co Ltd | Production of disk without having through-hole in central part and production of disk having small-diameter through-hole in central part and the disk |
JPH09123223A (en) * | 1995-10-27 | 1997-05-13 | Mitsubishi Rayon Co Ltd | Injection mold apparatus and manufacture of resin molding |
JPH1040584A (en) * | 1996-07-22 | 1998-02-13 | Matsushita Electric Ind Co Ltd | Manufacture of disk body such as optical disk |
JP2000071301A (en) * | 1998-09-03 | 2000-03-07 | Matsushita Electric Ind Co Ltd | Mold for optical disc |
JP2001246643A (en) * | 2000-03-03 | 2001-09-11 | Hitachi Maxell Ltd | Recording medium, injection mold, injection molding machine and molding method |
-
2002
- 2002-11-12 TW TW91133309A patent/TW200300552A/en unknown
- 2002-11-12 WO PCT/JP2002/011810 patent/WO2003042995A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01285321A (en) * | 1988-05-12 | 1989-11-16 | Nec Corp | Injection mold |
JPH02110840A (en) * | 1988-10-19 | 1990-04-24 | Hitachi Ltd | Optical disk and its forming metallic die |
JPH0831023A (en) * | 1994-07-12 | 1996-02-02 | Sanyo Electric Co Ltd | Production of disk without having through-hole in central part and production of disk having small-diameter through-hole in central part and the disk |
JPH09123223A (en) * | 1995-10-27 | 1997-05-13 | Mitsubishi Rayon Co Ltd | Injection mold apparatus and manufacture of resin molding |
JPH1040584A (en) * | 1996-07-22 | 1998-02-13 | Matsushita Electric Ind Co Ltd | Manufacture of disk body such as optical disk |
JP2000071301A (en) * | 1998-09-03 | 2000-03-07 | Matsushita Electric Ind Co Ltd | Mold for optical disc |
JP2001246643A (en) * | 2000-03-03 | 2001-09-11 | Hitachi Maxell Ltd | Recording medium, injection mold, injection molding machine and molding method |
Also Published As
Publication number | Publication date |
---|---|
TW200300552A (en) | 2003-06-01 |
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