DE3888257T2 - Informationsaufzeichnungsplatten. - Google Patents

Informationsaufzeichnungsplatten.

Info

Publication number
DE3888257T2
DE3888257T2 DE3888257T DE3888257T DE3888257T2 DE 3888257 T2 DE3888257 T2 DE 3888257T2 DE 3888257 T DE3888257 T DE 3888257T DE 3888257 T DE3888257 T DE 3888257T DE 3888257 T2 DE3888257 T2 DE 3888257T2
Authority
DE
Germany
Prior art keywords
disc
information recording
hub
recording discs
pieces
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
DE3888257T
Other languages
German (de)
English (en)
Other versions
DE3888257D1 (de
Inventor
Takeshi Minoda
Akira Todo
Toshio Kimura
Masayoshi Kurisu
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 DE3888257D1 publication Critical patent/DE3888257D1/de
Publication of DE3888257T2 publication Critical patent/DE3888257T2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • 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
    • G11B7/24015—Air-sandwiched 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
    • G11B7/24097—Structures for detection, control, recording operation or replay operation; Special shapes or structures for centering or eccentricity prevention; Arrangements for testing, inspecting or evaluating; Containers, cartridges or cassettes

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
DE3888257T 1987-07-27 1988-07-27 Informationsaufzeichnungsplatten. Expired - Fee Related DE3888257T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987114879U JPH0514365Y2 (US06521211-20030218-C00004.png) 1987-07-27 1987-07-27

Publications (2)

Publication Number Publication Date
DE3888257D1 DE3888257D1 (de) 1994-04-14
DE3888257T2 true DE3888257T2 (de) 1994-09-08

Family

ID=14648967

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3888257T Expired - Fee Related DE3888257T2 (de) 1987-07-27 1988-07-27 Informationsaufzeichnungsplatten.

Country Status (7)

Country Link
EP (1) EP0301829B1 (US06521211-20030218-C00004.png)
JP (1) JPH0514365Y2 (US06521211-20030218-C00004.png)
KR (1) KR890002833A (US06521211-20030218-C00004.png)
CN (1) CN1018102B (US06521211-20030218-C00004.png)
AT (1) ATE102733T1 (US06521211-20030218-C00004.png)
CA (1) CA1311300C (US06521211-20030218-C00004.png)
DE (1) DE3888257T2 (US06521211-20030218-C00004.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2030899A1 (en) * 1989-11-27 1991-05-28 Masayoshi Kurisu Information rercording media
MY139798A (en) * 1991-06-04 2009-10-30 Mitsubishi Electric Corp Multiple data surface data storage system and method
US5331488A (en) * 1992-06-04 1994-07-19 Hewlett-Packard Company Fixed hard disk drive having a removable integrated disc stack structure
DE19631319A1 (de) * 1995-08-15 1997-02-20 Minnesota Mining & Mfg Platte zur optischen Datenspeicherung
US6215620B1 (en) 1995-09-14 2001-04-10 Imation Corp. Data storage diskette with modified hub
US6990058B1 (en) 2000-04-03 2006-01-24 Dphi Acquisitions, Inc. Structure and method for storing data on optical disks
US6817026B2 (en) 2000-04-28 2004-11-09 Dphi Acquisitions, Inc. Magnetic hub assembly for data storage disk
AU2001257279A1 (en) * 2000-04-28 2001-11-20 Dataplay, Inc. Magnetic hub assembly for data storage disk
US7051054B1 (en) 2000-05-30 2006-05-23 Dphi Acquisitions, Inc. Method and apparatus for emulating read/write file system on a write-once storage disk
AU2001275040A1 (en) 2000-05-30 2001-12-11 Dataplay, Inc. Defect management system for write-once storage disk
US6738333B1 (en) 2000-05-30 2004-05-18 Dphi Acquisitions, Inc. Format for recording data in a storage disk
US6619100B2 (en) 2000-12-21 2003-09-16 Dphi Acquisitions, Inc. Crimping tool for metal hub plate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6148143A (ja) * 1984-08-13 1986-03-08 Hitachi Ltd 光デイスク
JPH07107751B2 (ja) * 1985-03-18 1995-11-15 日立マクセル株式会社 光デイスクならびにその製造方法
EP0192244B1 (en) * 1985-02-18 1990-06-13 Hitachi Maxell Ltd. An optical disc
JPS63152072A (ja) * 1986-12-15 1988-06-24 Fuji Photo Film Co Ltd 情報記録媒体
JPS63201928A (ja) * 1987-02-18 1988-08-22 Asahi Chem Ind Co Ltd 光学式情報記録円板

Also Published As

Publication number Publication date
KR890002833A (ko) 1989-04-11
CN1030993A (zh) 1989-02-08
CA1311300C (en) 1992-12-08
CN1018102B (zh) 1992-09-02
EP0301829A1 (en) 1989-02-01
JPS6423774U (US06521211-20030218-C00004.png) 1989-02-08
ATE102733T1 (de) 1994-03-15
JPH0514365Y2 (US06521211-20030218-C00004.png) 1993-04-16
DE3888257D1 (de) 1994-04-14
EP0301829B1 (en) 1994-03-09

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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