JPS63239637A - 光磁気記録媒体およびその記録方法 - Google Patents

光磁気記録媒体およびその記録方法

Info

Publication number
JPS63239637A
JPS63239637A JP7172287A JP7172287A JPS63239637A JP S63239637 A JPS63239637 A JP S63239637A JP 7172287 A JP7172287 A JP 7172287A JP 7172287 A JP7172287 A JP 7172287A JP S63239637 A JPS63239637 A JP S63239637A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic layer
layer
magnetization
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
JP7172287A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0535499B2 (de
Inventor
Yoichi Osato
陽一 大里
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
Priority to JP7172287A priority Critical patent/JPS63239637A/ja
Publication of JPS63239637A publication Critical patent/JPS63239637A/ja
Publication of JPH0535499B2 publication Critical patent/JPH0535499B2/ja
Granted 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

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
JP7172287A 1987-03-27 1987-03-27 光磁気記録媒体およびその記録方法 Granted JPS63239637A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7172287A JPS63239637A (ja) 1987-03-27 1987-03-27 光磁気記録媒体およびその記録方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7172287A JPS63239637A (ja) 1987-03-27 1987-03-27 光磁気記録媒体およびその記録方法

Publications (2)

Publication Number Publication Date
JPS63239637A true JPS63239637A (ja) 1988-10-05
JPH0535499B2 JPH0535499B2 (de) 1993-05-26

Family

ID=13468698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7172287A Granted JPS63239637A (ja) 1987-03-27 1987-03-27 光磁気記録媒体およびその記録方法

Country Status (1)

Country Link
JP (1) JPS63239637A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01220239A (ja) * 1988-02-29 1989-09-01 Kyocera Corp 光磁気記録素子
JPH02158940A (ja) * 1988-12-13 1990-06-19 Canon Inc 光磁気記録方法
JPH02177148A (ja) * 1988-12-28 1990-07-10 Canon Inc 情報記録方法
JPH02230532A (ja) * 1989-03-03 1990-09-12 Nec Corp 光磁気記録媒体
WO1991007748A1 (en) * 1989-11-10 1991-05-30 Mitsubishi Kasei Corporation Magnetooptical recording medium
US5233575A (en) * 1989-11-10 1993-08-03 Mitsubishi Kasei Corporation Magneto-optical recording medium
US5343449A (en) * 1992-09-18 1994-08-30 Nikon Corporation Over-write capable magnetooptical recording medium having reading layer
DE4405850A1 (de) * 1993-02-25 1994-09-01 Sharp Kk Magneto-optisches Aufzeichnungsmedium
US5635296A (en) * 1993-06-21 1997-06-03 Sharp Kabushiki Kaisha Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation
US5815477A (en) * 1995-01-31 1998-09-29 Canon Kabushiki Kaisha Write test method for use in recording process for recording information by modulating the power of a laser light thereby forming a high-temperature state and a low-temperature state on a recording medium
US5905695A (en) * 1995-08-30 1999-05-18 Canon Kabushiki Kaisha Optical information recording/reproducing apparatus and method capable of selecting recording waveform in correspondence with characteristics of medium
US6356516B2 (en) 1994-01-14 2002-03-12 Fujitsu Limited Magneto-optical recording medium and reproducing method for information recorded on the medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619618A1 (de) * 1985-06-11 1986-12-11 Nippon Kogaku K.K., Tokio/Tokyo Magnetooptisches aufzeichnungsverfahren mit ueberschreibmoeglichkeit, magnetooptische aufzeichnungsvorrichtung und dazugehoeriger aufzeichnungstraeger
JPS6242348A (ja) * 1985-08-19 1987-02-24 Nippon Telegr & Teleph Corp <Ntt> 光磁気記録媒体

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619618A1 (de) * 1985-06-11 1986-12-11 Nippon Kogaku K.K., Tokio/Tokyo Magnetooptisches aufzeichnungsverfahren mit ueberschreibmoeglichkeit, magnetooptische aufzeichnungsvorrichtung und dazugehoeriger aufzeichnungstraeger
JPS62175948A (ja) * 1985-06-11 1987-08-01 Nippon Kogaku Kk <Nikon> オーバー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
JPS6242348A (ja) * 1985-08-19 1987-02-24 Nippon Telegr & Teleph Corp <Ntt> 光磁気記録媒体

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01220239A (ja) * 1988-02-29 1989-09-01 Kyocera Corp 光磁気記録素子
JPH02158940A (ja) * 1988-12-13 1990-06-19 Canon Inc 光磁気記録方法
JPH02177148A (ja) * 1988-12-28 1990-07-10 Canon Inc 情報記録方法
JPH02230532A (ja) * 1989-03-03 1990-09-12 Nec Corp 光磁気記録媒体
WO1991007748A1 (en) * 1989-11-10 1991-05-30 Mitsubishi Kasei Corporation Magnetooptical recording medium
US5233575A (en) * 1989-11-10 1993-08-03 Mitsubishi Kasei Corporation Magneto-optical recording medium
US5343449A (en) * 1992-09-18 1994-08-30 Nikon Corporation Over-write capable magnetooptical recording medium having reading layer
DE4405850A1 (de) * 1993-02-25 1994-09-01 Sharp Kk Magneto-optisches Aufzeichnungsmedium
US5665467A (en) * 1993-02-25 1997-09-09 Sharp Kabushiki Kaisha Magneto-optical recording medium
US5635296A (en) * 1993-06-21 1997-06-03 Sharp Kabushiki Kaisha Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation
US6356516B2 (en) 1994-01-14 2002-03-12 Fujitsu Limited Magneto-optical recording medium and reproducing method for information recorded on the medium
US5815477A (en) * 1995-01-31 1998-09-29 Canon Kabushiki Kaisha Write test method for use in recording process for recording information by modulating the power of a laser light thereby forming a high-temperature state and a low-temperature state on a recording medium
US5905695A (en) * 1995-08-30 1999-05-18 Canon Kabushiki Kaisha Optical information recording/reproducing apparatus and method capable of selecting recording waveform in correspondence with characteristics of medium

Also Published As

Publication number Publication date
JPH0535499B2 (de) 1993-05-26

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term