DE69122197T2 - Magnetooptisches Aufzeichnungsmedium, und Verfahren zur magnetooptischen Aufzeichnung und Wiedergabe - Google Patents

Magnetooptisches Aufzeichnungsmedium, und Verfahren zur magnetooptischen Aufzeichnung und Wiedergabe

Info

Publication number
DE69122197T2
DE69122197T2 DE69122197T DE69122197T DE69122197T2 DE 69122197 T2 DE69122197 T2 DE 69122197T2 DE 69122197 T DE69122197 T DE 69122197T DE 69122197 T DE69122197 T DE 69122197T DE 69122197 T2 DE69122197 T2 DE 69122197T2
Authority
DE
Germany
Prior art keywords
magneto
optical recording
reproduction
recording medium
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 - Lifetime
Application number
DE69122197T
Other languages
English (en)
Other versions
DE69122197D1 (de
Inventor
Takeo Kawase
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.)
Intellectual Ventures Fund 83 LLC
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Application granted granted Critical
Publication of DE69122197D1 publication Critical patent/DE69122197D1/de
Publication of DE69122197T2 publication Critical patent/DE69122197T2/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
    • 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
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
DE69122197T 1990-03-24 1991-03-22 Magnetooptisches Aufzeichnungsmedium, und Verfahren zur magnetooptischen Aufzeichnung und Wiedergabe Expired - Lifetime DE69122197T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7413790 1990-03-24
PCT/JP1991/000378 WO1991015013A1 (en) 1990-03-24 1991-03-22 Magnetooptic recording medium, and method of magnetooptic recording and reproduction

Publications (2)

Publication Number Publication Date
DE69122197D1 DE69122197D1 (de) 1996-10-24
DE69122197T2 true DE69122197T2 (de) 1997-03-06

Family

ID=13538497

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69122197T Expired - Lifetime DE69122197T2 (de) 1990-03-24 1991-03-22 Magnetooptisches Aufzeichnungsmedium, und Verfahren zur magnetooptischen Aufzeichnung und Wiedergabe

Country Status (3)

Country Link
EP (1) EP0478786B1 (de)
DE (1) DE69122197T2 (de)
WO (1) WO1991015013A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3092363B2 (ja) 1992-12-01 2000-09-25 松下電器産業株式会社 光磁気記録媒体
JP3558306B2 (ja) * 1994-07-26 2004-08-25 パイオニア株式会社 多層記録ディスク及びこれを用いた記録／再生システム
JP3337575B2 (ja) * 1994-11-15 2002-10-21 旭化成株式会社 抗ストレプトリジンｏ抗体の決定方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841451A (ja) * 1981-09-03 1983-03-10 Nec Corp 垂直磁気記録体
JPS5848249A (ja) * 1981-09-17 1983-03-22 Nec Corp 垂直磁気記録体
JPS5922252A (ja) * 1982-07-29 1984-02-04 Canon Inc 垂直磁気記録媒体及び磁気記録再生方法
JPS61107553A (ja) * 1984-10-30 1986-05-26 Brother Ind Ltd 光磁気再生装置
JPH0666095B2 (ja) * 1984-10-30 1994-08-24 ブラザー工業株式会社 光磁気記録装置
JPH0666094B2 (ja) * 1984-10-30 1994-08-24 ブラザー工業株式会社 光磁気記録装置
JPH0814900B2 (ja) * 1987-05-08 1996-02-14 日本電信電話株式会社 光磁気記録媒体への書き込み方法
JPH01149245A (ja) * 1987-12-03 1989-06-12 Ricoh Co Ltd 多重記録層を有する光磁気記録媒体及びその記録方法

Also Published As

Publication number Publication date
WO1991015013A1 (en) 1991-10-03
EP0478786B1 (de) 1996-09-18
EP0478786A4 (en) 1992-12-02
EP0478786A1 (de) 1992-04-08
DE69122197D1 (de) 1996-10-24

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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: BACETILOS APPLICATIONS LLC, WILMINGTON, DEL., US