JPS647352A - Magneto-optical recording method - Google Patents

Magneto-optical recording method

Info

Publication number
JPS647352A
JPS647352A JP62070280A JP7028087A JPS647352A JP S647352 A JPS647352 A JP S647352A JP 62070280 A JP62070280 A JP 62070280A JP 7028087 A JP7028087 A JP 7028087A JP S647352 A JPS647352 A JP S647352A
Authority
JP
Japan
Prior art keywords
magnetic layer
inverted
magneto
magnetic
optical recording
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.)
Granted
Application number
JP62070280A
Other languages
English (en)
Other versions
JP2579631B2 (ja
Inventor
Ichiro Saito
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 JPS647352A publication Critical patent/JPS647352A/ja
Application granted granted Critical
Publication of JP2579631B2 publication Critical patent/JP2579631B2/ja
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
    • G11B11/10502—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
    • 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

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
JP62070280A 1986-03-27 1987-03-26 光磁気記録方法 Expired - Fee Related JP2579631B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6724086 1986-03-27
JP61-68795 1986-03-28
JP6879586 1986-03-28
JP61-67240 1986-03-28

Publications (2)

Publication Number Publication Date
JPS647352A true JPS647352A (en) 1989-01-11
JP2579631B2 JP2579631B2 (ja) 1997-02-05

Family

ID=26408418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62070280A Expired - Fee Related JP2579631B2 (ja) 1986-03-27 1987-03-26 光磁気記録方法

Country Status (2)

Country Link
US (1) US4938915A (ja)
JP (1) JP2579631B2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01290143A (ja) * 1988-05-16 1989-11-22 Nec Corp 光磁気記録媒体および光磁気記録・再生方法
JPH02267756A (ja) * 1989-04-07 1990-11-01 Nec Corp 光磁気記録再生方式
US5989671A (en) * 1989-11-22 1999-11-23 Sharp Kabushiki Kaisha Optical recording medium and manufacturing method thereof

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2679079B2 (ja) * 1988-02-18 1997-11-19 ソニー株式会社 光磁気記録方法
US5136573A (en) * 1988-06-30 1992-08-04 Kabushiki Kaisha Toshiba Information recording apparatus and method
JPH0227544A (ja) * 1988-07-15 1990-01-30 Canon Inc 光磁気記録媒体及び記録方法
US5163031A (en) * 1988-12-07 1992-11-10 Canon Kabushiki Kaisha Method of recording tetra-value signal on magneto-optical recording medium with plural magnetic layers
KR930009225B1 (ko) * 1989-09-05 1993-09-24 미쯔비시덴기 가부시끼가이샤 광자기 기록 매체, 광자기 기록 장치 및 광자기 기록 매체의 제조방법
JPH03113760A (ja) * 1989-09-22 1991-05-15 Nikon Corp 光磁気ピットポジション記録方法及びそれに使用される記録装置
JP2575511B2 (ja) * 1989-12-08 1997-01-29 インターナショナル・ビジネス・マシーンズ・コーポレーション 光磁気記録方法及び装置
JP2972899B2 (ja) * 1991-01-24 1999-11-08 株式会社リコー 光磁気記録方法
JPH0573990A (ja) * 1991-03-07 1993-03-26 Hitachi Ltd 光記録方法、光記録再生方法、光記録材料及び光記録装置
JP3009235B2 (ja) * 1991-03-14 2000-02-14 日東電工株式会社 木本植物の組織培養物の培養方法
DE69322593T2 (de) * 1992-10-20 1999-06-24 Nikon Corp., Tokio/Tokyo Verfahren und Vorrichtung zur optischen Aufzeichnung
EP0762410A4 (en) * 1994-05-10 1998-01-07 Hitachi Maxell MAGNETO-OPTICAL RECORDING MEDIUM, RECORDING AND REPRODUCING METHOD AND APPARATUS
US8988814B1 (en) 2014-01-28 2015-03-24 Kabushiki Kaisha Toshiba Storage device, controller, and recording and reproducing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125903A (ja) * 1983-12-09 1985-07-05 Sony Corp 熱磁気光記録方式

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151602A (en) * 1975-04-02 1979-04-24 U.S. Philips Corporation Magnetic bubble multilayer arrangement
US4202022A (en) * 1975-10-20 1980-05-06 Kokusai Denshin Denwa Kabushiki Kaisha Magnetic transfer record film and apparatus for magneto-optically reading magnetic record patterns using the same
JPS5778652A (en) * 1980-11-01 1982-05-17 Daido Steel Co Ltd Thermal magnetic recording carrier and thermal magnetic recording system
JPS5850639A (ja) * 1981-09-18 1983-03-25 Ricoh Co Ltd 垂直磁化記録媒体
JPS5857646A (ja) * 1981-10-01 1983-04-05 Akai Electric Co Ltd 垂直磁気記録・再生方法
JPS58171738A (ja) * 1982-03-31 1983-10-08 Fujitsu Ltd 光磁気メモリ媒体
DE3381422D1 (de) * 1982-12-23 1990-05-10 Sony Corp Thermomagnetisches optisches aufzeichnungs-/wiedergabeverfahren.
US4556291A (en) * 1983-08-08 1985-12-03 Xerox Corporation Magneto-optic storage media
JPS613324A (ja) * 1984-06-15 1986-01-09 Matsushita Electric Ind Co Ltd 光学情報記録方法
JPS6122452A (ja) * 1984-07-09 1986-01-31 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125903A (ja) * 1983-12-09 1985-07-05 Sony Corp 熱磁気光記録方式

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01290143A (ja) * 1988-05-16 1989-11-22 Nec Corp 光磁気記録媒体および光磁気記録・再生方法
JPH02267756A (ja) * 1989-04-07 1990-11-01 Nec Corp 光磁気記録再生方式
US5989671A (en) * 1989-11-22 1999-11-23 Sharp Kabushiki Kaisha Optical recording medium and manufacturing method thereof

Also Published As

Publication number Publication date
US4938915A (en) 1990-07-03
JP2579631B2 (ja) 1997-02-05

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees