DE68925629D1 - Magnetooptischer Aufzeichnungsträger, geeignet zum Ueberschreiben - Google Patents

Magnetooptischer Aufzeichnungsträger, geeignet zum Ueberschreiben

Info

Publication number
DE68925629D1
DE68925629D1 DE68925629T DE68925629T DE68925629D1 DE 68925629 D1 DE68925629 D1 DE 68925629D1 DE 68925629 T DE68925629 T DE 68925629T DE 68925629 T DE68925629 T DE 68925629T DE 68925629 D1 DE68925629 D1 DE 68925629D1
Authority
DE
Germany
Prior art keywords
overwriting
magneto
recording medium
optical recording
optical
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
DE68925629T
Other languages
English (en)
Other versions
DE68925629T2 (de
Inventor
Hiroyuki Matsumoto
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.)
Nikon Corp
Original Assignee
Nikon 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 Nikon Corp filed Critical Nikon Corp
Application granted granted Critical
Publication of DE68925629D1 publication Critical patent/DE68925629D1/de
Publication of DE68925629T2 publication Critical patent/DE68925629T2/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
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
DE68925629T 1988-12-12 1989-12-12 Magnetooptischer Aufzeichnungsträger, geeignet zum Ueberschreiben Expired - Fee Related DE68925629T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63313624A JPH02158939A (ja) 1988-12-12 1988-12-12 オーバーライト可能な光磁気記録媒体

Publications (2)

Publication Number Publication Date
DE68925629D1 true DE68925629D1 (de) 1996-03-21
DE68925629T2 DE68925629T2 (de) 1996-06-13

Family

ID=18043561

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925629T Expired - Fee Related DE68925629T2 (de) 1988-12-12 1989-12-12 Magnetooptischer Aufzeichnungsträger, geeignet zum Ueberschreiben

Country Status (3)

Country Link
EP (1) EP0373898B1 (de)
JP (1) JPH02158939A (de)
DE (1) DE68925629T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3006124B2 (ja) * 1991-04-10 2000-02-07 株式会社ニコン オーバーライト可能な光磁気記録媒体及びその記録再生装置
JPH0773516A (ja) * 1993-09-02 1995-03-17 Nikon Corp 光磁気記録媒体及び光磁気記録方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953855A (ja) * 1982-09-21 1984-03-28 Ricoh Co Ltd 熱磁気記録体
JPS5961011A (ja) * 1982-09-30 1984-04-07 Ricoh Co Ltd 光磁気記録媒体
JPS6098611A (ja) * 1983-11-04 1985-06-01 Kureha Chem Ind Co Ltd 熱磁気記録材料の製造方法
JP2521908B2 (ja) * 1985-06-11 1996-08-07 株式会社ニコン オ―バ―ライト可能な光磁気記録方法、それに使用される光磁気記録装置及び光磁気記録媒体、並びに変調方法、変調装置及び光磁気記録媒体
US4649519A (en) * 1985-09-30 1987-03-10 International Business Machines Corporation Self biasing thermal magneto-optic medium
JPH07105082B2 (ja) * 1985-11-28 1995-11-13 ソニー株式会社 光磁気記録媒体
DE3752222T2 (de) * 1986-07-08 1999-03-25 Canon Kk Magnetoptisches Aufzeichnungsmedium mit der Möglichkeit des Überschreibens mit zwei oder mehr Magnetschichten und dieses Medium verwendende Aufzeichnungsmethode
JPS63184942A (ja) * 1987-01-27 1988-07-30 Sumitomo Metal Mining Co Ltd 磁性薄膜記録媒体
JPS63249951A (ja) * 1987-04-03 1988-10-17 Mitsubishi Electric Corp 光磁気記録情報担体
JP2754537B2 (ja) * 1987-05-18 1998-05-20 株式会社ニコン 光磁気記録媒体並びにそれを使用したビット形成方法

Also Published As

Publication number Publication date
EP0373898A2 (de) 1990-06-20
EP0373898B1 (de) 1996-02-07
DE68925629T2 (de) 1996-06-13
JPH02158939A (ja) 1990-06-19
EP0373898A3 (de) 1991-01-09

Similar Documents

Publication Publication Date Title
DE68921527D1 (de) Magnetooptischer Aufzeignungsträger.
DE69018544D1 (de) Wiedergabemethode für magneto-optische Aufzeichnung.
DE3877234D1 (de) Magnetooptisches informationstragendes medium.
DE3888109D1 (de) Magneto-optisches Aufzeichnungsmedium.
DE3680478D1 (de) Magnetooptisches aufzeichnungsmedium.
DE69112168D1 (de) Magnetooptisches Aufzeichnungsmedium.
DE68910570D1 (de) Magneto-optische Wiedergabeköpfe.
BR9200185A (pt) Metodo de sobregravacao direta,aparelho otico-magnetico para sobregravacao direta e meio de gravacao otico-magnetico
DE68917903D1 (de) Magneto-optischer Aufzeichnungsträger.
DE68908762D1 (de) Thermomagnetischer Aufnahmekopf.
DE69016055D1 (de) Magnetooptisches Aufzeichnungssystem.
DE68923782D1 (de) Magneto-optisches Scheibenaufzeichnungsgerät.
DE69115426D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69115963D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69024747D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69019208D1 (de) Magneto-optisches Aufzeichnungsgerät.
DE69032931D1 (de) Magneto-optischer Aufzeichnungsträger
DE69222988D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69020992D1 (de) Magneto-optisches Aufzeichnungsmedium.
DE69122977D1 (de) Magnetooptisches Aufzeichnungsmedium
DE68925393D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69130441D1 (de) Magnetooptischer Aufzeichnungsträger
DE69021789D1 (de) Aufzeichnungsmedium.
DE68919289D1 (de) Magneto-optisches Aufzeichnungsgerät.
DE69016171D1 (de) Magnetooptisches Aufzeichnungsmedium.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: WESER & KOLLEGEN, 81245 MUENCHEN

8339 Ceased/non-payment of the annual fee