DE69323162D1 - Magnetooptischer Aufzeichnungsträger - Google Patents

Magnetooptischer Aufzeichnungsträger

Info

Publication number
DE69323162D1
DE69323162D1 DE69323162T DE69323162T DE69323162D1 DE 69323162 D1 DE69323162 D1 DE 69323162D1 DE 69323162 T DE69323162 T DE 69323162T DE 69323162 T DE69323162 T DE 69323162T DE 69323162 D1 DE69323162 D1 DE 69323162D1
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
DE69323162T
Other languages
English (en)
Other versions
DE69323162T2 (de
Inventor
Tsutomu Shiratori
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE69323162D1 publication Critical patent/DE69323162D1/de
Application granted granted Critical
Publication of DE69323162T2 publication Critical patent/DE69323162T2/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
    • 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
    • G11B11/10506—Recording by modulating only the light beam of the transducer
DE69323162T 1992-11-30 1993-11-29 Magnetooptischer Aufzeichnungsträger Expired - Fee Related DE69323162T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4320501A JP3056902B2 (ja) 1992-11-30 1992-11-30 光磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69323162D1 true DE69323162D1 (de) 1999-03-04
DE69323162T2 DE69323162T2 (de) 1999-07-08

Family

ID=18122158

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69323162T Expired - Fee Related DE69323162T2 (de) 1992-11-30 1993-11-29 Magnetooptischer Aufzeichnungsträger

Country Status (4)

Country Link
US (1) US5629909A (de)
EP (1) EP0600698B1 (de)
JP (1) JP3056902B2 (de)
DE (1) DE69323162T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07176107A (ja) * 1993-01-12 1995-07-14 Mitsubishi Electric Corp 光磁気記録装置
JPH09270156A (ja) * 1996-04-01 1997-10-14 Canon Inc 光磁気記録媒体
JPH1092045A (ja) * 1996-09-18 1998-04-10 Canon Inc 信号再生装置
JPH10149592A (ja) * 1996-09-19 1998-06-02 Canon Inc 磁壁移動を利用して情報を再生する光磁気記録媒体および信号再生方法
JPH1091938A (ja) * 1996-09-19 1998-04-10 Canon Inc 磁気記録媒体、再生方法および再生装置
JPH1092037A (ja) * 1996-09-19 1998-04-10 Canon Inc 光磁気記録再生方法及び光磁気記録再生装置
JP3332750B2 (ja) 1996-09-19 2002-10-07 キヤノン株式会社 磁気記録媒体、記録方法、再生方法、及び、磁性記録媒体の製造方法
JPH10228684A (ja) * 1996-12-13 1998-08-25 Canon Inc 光磁気記録媒体とその製造方法及びその媒体の再生方法
JPH10275369A (ja) 1997-01-31 1998-10-13 Canon Inc 情報記録媒体の製造方法および該方法による情報記録媒体
JPH11134732A (ja) 1997-08-29 1999-05-21 Canon Inc 情報記録再生方法
JP3703315B2 (ja) * 1997-10-01 2005-10-05 キヤノン株式会社 光磁気記録再生方法及びその再生装置
US6359747B1 (en) * 1998-02-10 2002-03-19 Seagate Technology Llc Hard disk patterning
US6490117B1 (en) * 1999-03-26 2002-12-03 Seagate Technology Llc Method of thermally printing servo patterns on magnetic media
JP2003514324A (ja) * 1999-11-12 2003-04-15 シーゲイト テクノロジー エルエルシー 熱誘導相転移を利用した磁気媒体のパターン化
JP2004022056A (ja) * 2002-06-14 2004-01-22 Fujitsu Ltd 磁気記録媒体初期化方法、磁気記録媒体信号転写方法、磁気記録媒体信号処理装置及び両面垂直磁気記録媒体
US7145847B2 (en) * 2002-08-28 2006-12-05 Canon Kabushiki Kaisha Annealed optical information recording medium and optical information recording/reproducing apparatus for the same
JP2005025889A (ja) * 2003-07-04 2005-01-27 Canon Inc 光学的記録媒体への情報記録方法
JP2005174518A (ja) * 2003-12-15 2005-06-30 Canon Inc 磁性記録媒体及びその製造方法
US10269381B1 (en) * 2017-10-25 2019-04-23 Seagate Technology Llc Heat assisted magnetic recording with exchange coupling control layer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62137754A (ja) * 1985-12-09 1987-06-20 Canon Inc 光磁気再生方法
JPS62264463A (ja) * 1986-05-12 1987-11-17 Fuji Photo Film Co Ltd 光磁気記録媒体
ATE172047T1 (de) * 1986-07-08 1998-10-15 Canon Kk Magnetoptisches aufzeichnungsmedium mit der möglichkeit des überschreibens mit zwei oder mehr magnetschichten und dieses medium verwendende aufzeichnungsmethode
CA1322408C (en) * 1986-08-20 1993-09-21 Tomiji Tanaka Thermomagnetic recording method applying power modulated laser on a magnetically coupled double layer structure of perpendicular anisotropy film
JP2762435B2 (ja) * 1987-04-24 1998-06-04 ソニー株式会社 熱磁気記録方法
US5210724A (en) * 1988-03-07 1993-05-11 Canon Kabushiki Kaisha Optomagnetic recording method and apparatus which precludes an interface magnetic wall within block magnetic wall
JP3038735B2 (ja) * 1989-11-01 2000-05-08 株式会社ニコン オーバライト可能な光磁気記録媒体及び前処理方法
JP2707769B2 (ja) * 1989-11-14 1998-02-04 三菱電機株式会社 光磁気記録媒体及びそれを用いた光磁気記録再生装置
JP2567996B2 (ja) * 1991-01-23 1996-12-25 インターナショナル・ビジネス・マシーンズ・コーポレイション 光磁気記録方法及び装置

Also Published As

Publication number Publication date
US5629909A (en) 1997-05-13
EP0600698B1 (de) 1999-01-20
JPH06168489A (ja) 1994-06-14
EP0600698A3 (de) 1994-11-23
JP3056902B2 (ja) 2000-06-26
DE69323162T2 (de) 1999-07-08
EP0600698A2 (de) 1994-06-08

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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