DE69207804T2 - Magnetooptischer Aufzeichnungsträger - Google Patents

Magnetooptischer Aufzeichnungsträger

Info

Publication number
DE69207804T2
DE69207804T2 DE1992607804 DE69207804T DE69207804T2 DE 69207804 T2 DE69207804 T2 DE 69207804T2 DE 1992607804 DE1992607804 DE 1992607804 DE 69207804 T DE69207804 T DE 69207804T DE 69207804 T2 DE69207804 T2 DE 69207804T2
Authority
DE
Germany
Prior art keywords
magneto
recording medium
optical recording
optical
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
DE1992607804
Other languages
English (en)
Other versions
DE69207804D1 (de
Inventor
Hideo Kaneko
Katsushi Tokunaga
Yoshio Tawara
Yoshiaki Shimizu
Tadao Nomura
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co 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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Application granted granted Critical
Publication of DE69207804D1 publication Critical patent/DE69207804D1/de
Publication of DE69207804T2 publication Critical patent/DE69207804T2/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
    • 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
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • 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
    • G11B11/10593—Details for improving read-out properties, e.g. polarisation of light
DE1992607804 1991-04-17 1992-04-15 Magnetooptischer Aufzeichnungsträger Expired - Fee Related DE69207804T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3112416A JP2622206B2 (ja) 1991-04-17 1991-04-17 光磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69207804D1 DE69207804D1 (de) 1996-03-07
DE69207804T2 true DE69207804T2 (de) 1996-08-01

Family

ID=14586103

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1992607804 Expired - Fee Related DE69207804T2 (de) 1991-04-17 1992-04-15 Magnetooptischer Aufzeichnungsträger

Country Status (3)

Country Link
EP (1) EP0509467B1 (de)
JP (1) JP2622206B2 (de)
DE (1) DE69207804T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH0744887A (ja) * 1993-07-30 1995-02-14 Canon Inc 光学的記録媒体
FR2891554B1 (fr) * 2005-10-03 2008-01-11 Hef Soc Par Actions Simplifiee Revetement anti-corrosion a base de silicium, de carbone, d'hydrogene et d'azote.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0296952A (ja) * 1988-06-28 1990-04-09 Sharp Corp 光学記憶素子
JP2660569B2 (ja) * 1989-02-10 1997-10-08 三菱電機株式会社 光磁気記録媒体
JPH03100947A (ja) * 1989-09-12 1991-04-25 Fuji Photo Film Co Ltd 光磁気記録媒体
JPH03102665A (ja) * 1989-09-14 1991-04-30 Fuji Photo Film Co Ltd 光磁気記録媒体
JPH03102664A (ja) * 1989-09-14 1991-04-30 Fuji Photo Film Co Ltd 光磁気記録媒体
JPH03113851A (ja) * 1989-09-26 1991-05-15 Fuji Photo Film Co Ltd 光磁気記録媒体

Also Published As

Publication number Publication date
JP2622206B2 (ja) 1997-06-18
EP0509467B1 (de) 1996-01-24
EP0509467A1 (de) 1992-10-21
DE69207804D1 (de) 1996-03-07
JPH04318346A (ja) 1992-11-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee