DE68917483T2 - Datenaufzeichnungsträger. - Google Patents

Datenaufzeichnungsträger.

Info

Publication number
DE68917483T2
DE68917483T2 DE68917483T DE68917483T DE68917483T2 DE 68917483 T2 DE68917483 T2 DE 68917483T2 DE 68917483 T DE68917483 T DE 68917483T DE 68917483 T DE68917483 T DE 68917483T DE 68917483 T2 DE68917483 T2 DE 68917483T2
Authority
DE
Germany
Prior art keywords
carrier disk
upper flange
data recording
hub
recording medium
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE68917483T
Other languages
German (de)
English (en)
Other versions
DE68917483D1 (de
Inventor
Fujio C O Mitsui Petroche Omae
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Petrochemical Industries Ltd
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
Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Application granted granted Critical
Publication of DE68917483D1 publication Critical patent/DE68917483D1/de
Publication of DE68917483T2 publication Critical patent/DE68917483T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G11B7/24018—Laminated 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Holo Graphy (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Magnetic Record Carriers (AREA)
DE68917483T 1988-01-19 1989-01-17 Datenaufzeichnungsträger. Expired - Fee Related DE68917483T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988004883U JP2537348Y2 (ja) 1988-01-19 1988-01-19 光ディスク

Publications (2)

Publication Number Publication Date
DE68917483D1 DE68917483D1 (de) 1994-09-22
DE68917483T2 true DE68917483T2 (de) 1994-12-15

Family

ID=11596078

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68917483T Expired - Fee Related DE68917483T2 (de) 1988-01-19 1989-01-17 Datenaufzeichnungsträger.

Country Status (6)

Country Link
EP (1) EP0325399B1 (en:Method)
JP (1) JP2537348Y2 (en:Method)
KR (1) KR910006653B1 (en:Method)
CN (2) CN1035200A (en:Method)
AT (1) ATE110183T1 (en:Method)
DE (1) DE68917483T2 (en:Method)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944982A (en) * 1988-04-04 1990-07-31 Fuji Photo Film Co., Ltd. Information recording medium having magnetizable hub
JPH0638068U (ja) * 1992-10-13 1994-05-20 富士写真フイルム株式会社 磁気ディスクカートリッジ
DE69535111T2 (de) * 1994-02-15 2007-02-15 Mitsubishi Chemical Corp. Plattenkassette
DE19631319A1 (de) * 1995-08-15 1997-02-20 Minnesota Mining & Mfg Platte zur optischen Datenspeicherung
EP0920012B1 (en) * 1996-08-08 2004-11-03 Fuji Photo Film Co., Ltd. Magnetic disk cartridge
US20060190956A1 (en) * 2002-12-30 2006-08-24 Koninklijke Philips Electronics N.V. Optical disc and apparatus for portable applications

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606938Y2 (ja) * 1980-08-14 1985-03-07 ソニー株式会社 記録再生用デイスクカセツト
US4562505A (en) * 1982-12-20 1985-12-31 Verbatim Corporation Flexible magnetic memory disk with metallic hub and method of manufacturing same
JPS60186565U (ja) * 1984-05-18 1985-12-10 ソニー株式会社 磁気デイスク
JPS6113376U (ja) * 1984-06-22 1986-01-25 富士写真フイルム株式会社 磁気デイスクカ−トリツジ
JPH079257Y2 (ja) * 1984-06-22 1995-03-06 富士写真フイルム株式会社 磁気ディスクカ−トリッジ
JPS6124877U (ja) * 1984-07-19 1986-02-14 ティーディーケイ株式会社 デイスクカ−トリツジ
JPS61210540A (ja) * 1985-03-15 1986-09-18 Hitachi Maxell Ltd 光デイスク
JPS61186565U (en:Method) * 1985-05-14 1986-11-20

Also Published As

Publication number Publication date
ATE110183T1 (de) 1994-09-15
EP0325399A3 (en) 1990-12-27
CN2044759U (zh) 1989-09-20
EP0325399A2 (en) 1989-07-26
JPH01109875U (en:Method) 1989-07-25
KR910006653B1 (ko) 1991-08-30
JP2537348Y2 (ja) 1997-05-28
DE68917483D1 (de) 1994-09-22
CN1035200A (zh) 1989-08-30
KR890012284A (ko) 1989-08-25
EP0325399B1 (en) 1994-08-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee