DE3685236D1 - Magnetooptischer informationstraeger. - Google Patents

Magnetooptischer informationstraeger.

Info

Publication number
DE3685236D1
DE3685236D1 DE8686102161T DE3685236T DE3685236D1 DE 3685236 D1 DE3685236 D1 DE 3685236D1 DE 8686102161 T DE8686102161 T DE 8686102161T DE 3685236 T DE3685236 T DE 3685236T DE 3685236 D1 DE3685236 D1 DE 3685236D1
Authority
DE
Germany
Prior art keywords
information carrier
magnetooptic
magnetooptic information
carrier
information
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
DE8686102161T
Other languages
English (en)
Inventor
Akira Takahashi
Yoshiteru Murakami
Hiroyuki Katayama
Junji Hirokane
Kenji Ohta
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE3685236D1 publication Critical patent/DE3685236D1/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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/928—Magnetic property
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
DE8686102161T 1985-02-21 1986-02-19 Magnetooptischer informationstraeger. Expired - Lifetime DE3685236D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60034133A JPH0697514B2 (ja) 1985-02-21 1985-02-21 磁気光学記憶素子

Publications (1)

Publication Number Publication Date
DE3685236D1 true DE3685236D1 (de) 1992-06-17

Family

ID=12405722

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686102161T Expired - Lifetime DE3685236D1 (de) 1985-02-21 1986-02-19 Magnetooptischer informationstraeger.

Country Status (5)

Country Link
US (1) US4717628A (de)
EP (1) EP0192256B1 (de)
JP (1) JPH0697514B2 (de)
CA (1) CA1252887A (de)
DE (1) DE3685236D1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4786559A (en) * 1985-12-25 1988-11-22 Sharp Kabushiki Kaisha Magnetooptical storage element
WO1988003310A1 (en) * 1986-10-29 1988-05-05 Dai Nippon Insatsu Kabushiki Kaisha Draw type optical recording medium
AU600576B2 (en) * 1987-04-24 1990-08-16 Sony Corporation Thermomagnetic recording method applying power modulated laser on a magnetically coupled multi-layer structure of perpendicular anisotropy magnetic film
ATE139052T1 (de) * 1987-08-08 1996-06-15 Mitsui Petrochemical Ind Photomagnetisches speichermedium
JPH01138640A (ja) * 1987-11-25 1989-05-31 Sony Corp 光磁気記録媒体
JPH01211253A (ja) * 1988-02-17 1989-08-24 Victor Co Of Japan Ltd 光学的情報信号記録媒体
JP2561130B2 (ja) * 1988-06-27 1996-12-04 富士写真フイルム株式会社 光磁気記録媒体
JPH0296952A (ja) * 1988-06-28 1990-04-09 Sharp Corp 光学記憶素子
DE68909520T2 (de) * 1988-07-07 1994-04-21 Oki Electric Ind Co Ltd Magneto-optisches Speichermedium.
JPH02223040A (ja) * 1988-11-04 1990-09-05 Fuji Photo Film Co Ltd 光磁気記録媒体
JP2997471B2 (ja) * 1988-12-05 2000-01-11 株式会社日立製作所 光磁気デイクス
KR900008471A (ko) * 1988-11-07 1990-06-04 미다 가쓰시게 광자기 디스크
JP2660569B2 (ja) * 1989-02-10 1997-10-08 三菱電機株式会社 光磁気記録媒体
US5055353A (en) * 1989-05-16 1991-10-08 Fuji Photo Film Co., Ltd. Magneto-optical recording medium
JP2654689B2 (ja) * 1989-05-16 1997-09-17 富士写真フイルム株式会社 光磁気記録媒体
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
US5698312A (en) * 1990-03-22 1997-12-16 Fuji Photo Film Co., Ltd. Magneto-optical recording medium and method for making the same
EP0470546B1 (de) * 1990-08-07 1998-11-04 Hitachi Maxell Ltd. Magnetooptischer Aufzeichnungsträger
EP0503607B1 (de) * 1991-03-14 1999-07-21 TDK Corporation Magneto-optisches Aufzeichnungsmedium
JP2968632B2 (ja) * 1991-03-14 1999-10-25 ティーディーケイ株式会社 光磁気記録媒体
JPH04335231A (ja) * 1991-05-10 1992-11-24 Nec Corp 光磁気記録用単板光ディスク
JP2786360B2 (ja) * 1991-12-05 1998-08-13 シャープ株式会社 光磁気ディスク
US5547751A (en) * 1992-04-10 1996-08-20 Mitsubishi Denki Kabushiki Kaisha Magneto-optical recording medium and method of manufacturing the same
JP3292890B2 (ja) * 1992-08-10 2002-06-17 株式会社リコー 光反射放熱用材料を用いた相変化形光記録媒体
JP2960824B2 (ja) * 1992-09-30 1999-10-12 ティーディーケイ株式会社 光磁気記録媒体
US5948497A (en) * 1992-10-19 1999-09-07 Eastman Kodak Company High stability silver based alloy reflectors for use in a writable compact disk
US5458941A (en) * 1994-06-09 1995-10-17 Minnesota Mining And Manufacturing Company Optical recording medium exhibiting eutectic phase equilbria
US6582764B2 (en) * 2001-10-09 2003-06-24 Engelhard Corporation Hybrid inorganic/organic color effect materials and production thereof
EP1630801A4 (de) * 2003-05-23 2008-03-19 Matsushita Electric Ind Co Ltd Optisches informationsaufzeichnungsmedium und prozess zu seiner herstellung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467383A (en) * 1980-02-23 1984-08-21 Sharp Kabushiki Kaisha Magnetooptic memory medium
US4414650A (en) * 1980-06-23 1983-11-08 Sharp Kabushiki Kaisha Magneto-optic memory element
CA1185013A (en) * 1981-01-14 1985-04-02 Kenji Ohta Magneto-optic memory medium
NL8102283A (nl) * 1981-05-11 1982-12-01 Philips Nv Optisch uitleesbare informatieschijf met een reflectielaag gevormd uit een metaallegering.
JPS5860441A (ja) * 1981-10-06 1983-04-09 Canon Inc 光熱磁気記録媒体
US4544443A (en) * 1983-05-13 1985-10-01 Shap Kabushiki Kaisha Method for manufacturing an optical memory element
JPH0636253B2 (ja) * 1983-08-18 1994-05-11 シャープ株式会社 光メモリ円板
CA1224270A (en) * 1983-09-16 1987-07-14 Junji Hirokane Magneto-optic memory element
JPS6080144A (ja) * 1983-10-07 1985-05-08 Sharp Corp 光メモリ素子
JPS60247844A (ja) * 1984-05-22 1985-12-07 Sharp Corp 磁気光学記憶素子の製造方法
US4719137A (en) * 1984-04-13 1988-01-12 Sharp Kabushiki Kaisha Magneto-optic memory element
JPS61131250A (ja) * 1984-11-30 1986-06-18 Hitachi Ltd 光デイスク

Also Published As

Publication number Publication date
EP0192256A2 (de) 1986-08-27
EP0192256B1 (de) 1992-05-13
JPH0697514B2 (ja) 1994-11-30
US4717628A (en) 1988-01-05
EP0192256A3 (en) 1988-11-30
CA1252887A (en) 1989-04-18
JPS61194664A (ja) 1986-08-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition