DE3680487D1 - Material fuer datenaufzeichnung. - Google Patents

Material fuer datenaufzeichnung.

Info

Publication number
DE3680487D1
DE3680487D1 DE8686117143T DE3680487T DE3680487D1 DE 3680487 D1 DE3680487 D1 DE 3680487D1 DE 8686117143 T DE8686117143 T DE 8686117143T DE 3680487 T DE3680487 T DE 3680487T DE 3680487 D1 DE3680487 D1 DE 3680487D1
Authority
DE
Germany
Prior art keywords
data recording
recording
data
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 - Lifetime
Application number
DE8686117143T
Other languages
English (en)
Inventor
Tadashi Kiyomiya
Mitsuo Naito
Tatsuya Sasaoka
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE3680487D1 publication Critical patent/DE3680487D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
DE8686117143T 1985-12-09 1986-12-09 Material fuer datenaufzeichnung. Expired - Lifetime DE3680487D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27629785A JPH0719396B2 (ja) 1985-12-09 1985-12-09 情報記録媒体

Publications (1)

Publication Number Publication Date
DE3680487D1 true DE3680487D1 (de) 1991-08-29

Family

ID=17567482

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686117143T Expired - Lifetime DE3680487D1 (de) 1985-12-09 1986-12-09 Material fuer datenaufzeichnung.

Country Status (6)

Country Link
US (1) US4725502A (de)
EP (1) EP0226168B1 (de)
JP (1) JPH0719396B2 (de)
KR (1) KR940011232B1 (de)
CA (1) CA1267470A (de)
DE (1) DE3680487D1 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2527762B2 (ja) * 1987-09-07 1996-08-28 三菱化学株式会社 光磁気記録媒体
JPH01232549A (ja) * 1987-11-11 1989-09-18 Toshiba Corp 光ディスク及びその製造方法
US4931138A (en) * 1988-01-12 1990-06-05 Olympus Optical Co. Ltd. Method and apparatus for manufacturing optical card
US5016239A (en) * 1988-02-05 1991-05-14 Tandy Corporation Recording method and apparatus
JPH01211253A (ja) * 1988-02-17 1989-08-24 Victor Co Of Japan Ltd 光学的情報信号記録媒体
JPH01258243A (ja) * 1988-04-08 1989-10-16 Fujitsu Ltd 互換型書き換え可能光ディスク
DE3818934A1 (de) * 1988-06-03 1989-12-14 Leybold Ag Optischer aufzeichnungstraeger
DE68921257T2 (de) * 1988-06-28 1995-09-21 Sharp Kk Magneto-optisches Speichergerät.
EP0350010B1 (de) * 1988-07-07 1993-09-29 Oki Electric Industry Co., Ltd. Magneto-optisches Speichermedium
JP2532600B2 (ja) * 1988-08-19 1996-09-11 松下電器産業株式会社 情報担体ディスク
US5256518A (en) * 1988-08-19 1993-10-26 Matsushita Electric Industrial Co., Ltd. Information storage disk employing a reflective layer having good malleability
US5249175A (en) * 1988-09-09 1993-09-28 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and information recording and reproducing method therefor
US5040166A (en) * 1988-10-21 1991-08-13 Oki Electric Industry Co., Ltd. Magneto-optical recording medium having a reflective film of Ag and Mn or Ag, Mn and Sn
JPH02223040A (ja) * 1988-11-04 1990-09-05 Fuji Photo Film Co Ltd 光磁気記録媒体
EP0368194B1 (de) * 1988-11-07 1998-06-17 Hitachi, Ltd. Magneto-optisches Speichermedium
JPH02226533A (ja) * 1989-02-27 1990-09-10 Mitsubishi Electric Corp 情報記録媒体
US5032470A (en) * 1989-04-17 1991-07-16 Mitsui Petrochemical Industries, Ltd. Optical recording medium with an aluminum alloy metallic layer containing at least hafnium
US5055353A (en) * 1989-05-16 1991-10-08 Fuji Photo Film Co., Ltd. Magneto-optical recording medium
CA2017226A1 (en) * 1989-05-23 1990-11-23 Kiyotaka Shindo Information recording media
US5914198A (en) * 1989-06-05 1999-06-22 Hitachi, Ltd. Magneto-optical recording medium having dielectric layers with different indices of refraction
CA2017284C (en) * 1989-07-04 1995-10-03 Kazutomi Suzuki Optical recording medium
DE69027103T2 (de) * 1989-11-22 1996-10-24 Sharp Kk Optisches Aufzeichnungsmedium und Verfahren zur Aufzeichnungs und Wiedergabe von Informationen darauf
JP2928330B2 (ja) * 1990-05-11 1999-08-03 株式会社神戸製鋼所 光メディア用スパッタリングターゲット溶製材
US5088087A (en) * 1990-07-25 1992-02-11 Tandy Corporation Dual-metal reflective layer recordable/erasable optical media
US5500301A (en) 1991-03-07 1996-03-19 Kabushiki Kaisha Kobe Seiko Sho A1 alloy films and melting A1 alloy sputtering targets for depositing A1 alloy films
US5485452A (en) * 1991-06-28 1996-01-16 Pioneer Electronic Corporation Optical information recording medium
US5406544A (en) * 1991-07-25 1995-04-11 Clark; Bryan K. Low cost substrate for bump-forming recording media
US6676791B1 (en) * 1995-03-24 2004-01-13 Jvc Victor Company Of Japan, Ltd. Multilayered optical information-recording media and process for manufacture thereof
JP3351164B2 (ja) * 1995-03-24 2002-11-25 日本ビクター株式会社 光学的情報記録媒体の製造方法
US5851729A (en) * 1995-08-31 1998-12-22 Sony Corporation Optical disc
JP2763092B2 (ja) * 1996-03-11 1998-06-11 ソニー株式会社 情報記録媒体
JP2763093B2 (ja) * 1996-03-11 1998-06-11 ソニー株式会社 情報記録媒体
JP2763094B2 (ja) * 1996-03-11 1998-06-11 ソニー株式会社 情報記録媒体
JP5331420B2 (ja) * 2008-09-11 2013-10-30 株式会社神戸製鋼所 読み出し専用の光情報記録媒体および該光情報記録媒体の半透過反射膜形成用スパッタリングターゲット

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662229A (en) * 1979-10-25 1981-05-28 Asahi Glass Co Ltd Electro-optical dimming panel
JPS5720933A (en) * 1980-07-14 1982-02-03 Toshiba Corp Information recording carrier
US4363844A (en) * 1980-09-22 1982-12-14 Lewis Terry W Metallized information carrying discs
JPS598150A (ja) * 1982-07-02 1984-01-17 Sharp Corp 磁気光学記憶素子
JPS5938781A (ja) * 1982-08-27 1984-03-02 Sharp Corp 磁気光学記憶素子
JPS6025036A (ja) * 1983-07-20 1985-02-07 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPS6045953A (ja) * 1983-08-23 1985-03-12 Seiko Epson Corp 光記録媒体
JPS60107746A (ja) * 1983-11-15 1985-06-13 Sanyo Electric Co Ltd 光学記録ディスク
JPS60145543A (ja) * 1984-01-06 1985-08-01 Fuji Photo Film Co Ltd 光磁気デイスク
JPS60145542A (ja) * 1984-01-06 1985-08-01 Fuji Photo Film Co Ltd 光磁気記録媒体
GB2158281B (en) * 1984-03-09 1987-12-23 Canon Kk Optical recording medium
US4719137A (en) * 1984-04-13 1988-01-12 Sharp Kabushiki Kaisha Magneto-optic memory element
JPS61183433A (ja) * 1985-02-08 1986-08-16 Matsushita Electric Ind Co Ltd アルミニウム合金薄膜とその製造方法

Also Published As

Publication number Publication date
US4725502A (en) 1988-02-16
EP0226168A3 (en) 1989-03-01
EP0226168B1 (de) 1991-07-24
KR940011232B1 (ko) 1994-11-29
EP0226168A2 (de) 1987-06-24
JPS62137743A (ja) 1987-06-20
KR870006533A (ko) 1987-07-13
CA1267470A (en) 1990-04-03
JPH0719396B2 (ja) 1995-03-06

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN