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 PDF

Info

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
Application number
PCT/JP2002/011810
Other languages
French (fr)
Japanese (ja)
Inventor
Kenji Yamaga
Yoshimi Sakai
Mamoru Usami
Original Assignee
Tdk Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2001346475A external-priority patent/JP2003151174A/en
Priority claimed from JP2001359714A external-priority patent/JP2003154557A/en
Application filed by Tdk Corporation filed Critical Tdk Corporation
Publication of WO2003042995A1 publication Critical patent/WO2003042995A1/en

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

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).
PCT/JP2002/011810 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 WO2003042995A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001/346475 2001-11-12
JP2001346475A JP2003151174A (en) 2001-11-12 2001-11-12 Disk substrate material for optical disk
JP2001359714A JP2003154557A (en) 2001-11-26 2001-11-26 Die device for manufacturing disk-like base material
JP2001/359714 2001-11-26

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
EP1187122A3 (en) Method and apparatus for producing an optical information recording medium, and optical information recording medium
EP1378899A3 (en) Optical data recording medium and manufacturing method for the same
JP3153116B2 (en) Mold for forming substrates for bonded discs
WO2002049027A1 (en) Disk substrate, molding apparatus for injection-molding it, and disk substrate pick-up robot
WO2003042995A1 (en) 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
US5484324A (en) Stamper for injection molding
WO2003030161A1 (en) Method and device for manufacturing optical recording medium
US5852329A (en) Optical disc molding device and molding method for optical disc
WO2003017269A1 (en) Optical disk manufacturing method
US20020086130A1 (en) Glass substrate for an optical disk and a manufacturing method thereof
JP2001310358A (en) Mold for molding disk substrate
TW200518086A (en) Hub-mounted optical disk, method for fabricating optical disk, and injection molding die for manufacturing optical disk substrate
KR970033707A (en) Bonding disks and manufacturing apparatus thereof and manufacturing method thereof
JPH03293107A (en) Manufacture of optical disc and mold therefor
JPH10228674A (en) Disk substrate
WO2003009328A1 (en) Production method for spacer assembly used in flat display unit
JP3749470B2 (en) Method for manufacturing disc-shaped substrate material
JP2002074756A5 (en)
JPH10296797A (en) Disk molded body, disk molded body molding device, production of disk molded body, optical disk and production of optical disk
JP3835626B2 (en) Mold
JPH04290715A (en) Mold for injection-molding base plate for optical information-recording medium
US20030151150A1 (en) Method for manufacturing disc-shaped optical recording medium
TW200501155A (en) Manufacturing method of cover layer of optical information storage media
JP2003151174A (en) Disk substrate material for optical disk
JP2003191339A (en) Method for manufacturing optical disc, optical disc molding product used therefor, optical disc stamper and mold for molding optical disc

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase