JPH04153932A - 光磁気記録媒体 - Google Patents

光磁気記録媒体

Info

Publication number
JPH04153932A
JPH04153932A JP27653290A JP27653290A JPH04153932A JP H04153932 A JPH04153932 A JP H04153932A JP 27653290 A JP27653290 A JP 27653290A JP 27653290 A JP27653290 A JP 27653290A JP H04153932 A JPH04153932 A JP H04153932A
Authority
JP
Japan
Prior art keywords
magneto
layer
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.)
Pending
Application number
JP27653290A
Other languages
English (en)
Japanese (ja)
Inventor
Yukinori Yamada
幸憲 山田
Masashi Yoshihiro
昌史 吉弘
Norio Ota
憲雄 太田
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP27653290A priority Critical patent/JPH04153932A/ja
Priority to DE19914192566 priority patent/DE4192566T1/de
Priority to PCT/JP1991/001407 priority patent/WO1992007358A1/ja
Publication of JPH04153932A publication Critical patent/JPH04153932A/ja
Pending 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
    • G11B11/10589—Details
    • G11B11/10591—Details for improving write-in properties, e.g. Curie-point temperature
    • 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
    • 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
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
JP27653290A 1990-10-17 1990-10-17 光磁気記録媒体 Pending JPH04153932A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP27653290A JPH04153932A (ja) 1990-10-17 1990-10-17 光磁気記録媒体
DE19914192566 DE4192566T1 (enrdf_load_stackoverflow) 1990-10-17 1991-10-16
PCT/JP1991/001407 WO1992007358A1 (en) 1990-10-17 1991-10-16 Magneto-optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27653290A JPH04153932A (ja) 1990-10-17 1990-10-17 光磁気記録媒体

Publications (1)

Publication Number Publication Date
JPH04153932A true JPH04153932A (ja) 1992-05-27

Family

ID=17570785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27653290A Pending JPH04153932A (ja) 1990-10-17 1990-10-17 光磁気記録媒体

Country Status (3)

Country Link
JP (1) JPH04153932A (enrdf_load_stackoverflow)
DE (1) DE4192566T1 (enrdf_load_stackoverflow)
WO (1) WO1992007358A1 (enrdf_load_stackoverflow)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63302443A (ja) * 1987-06-01 1988-12-09 Mitsui Petrochem Ind Ltd 光磁気記録膜
JPS6450257A (en) * 1987-08-21 1989-02-27 Nikon Corp Multi-layered magneto-optical recording medium controlled in exchange bonding strength
JP2701337B2 (ja) * 1987-12-29 1998-01-21 ソニー株式会社 光磁気記録媒体
JPH01217744A (ja) * 1988-02-24 1989-08-31 Toshiba Corp 光磁気記録媒体
JP2829970B2 (ja) * 1988-07-13 1998-12-02 ソニー株式会社 熱磁気記録媒体
JP2682710B2 (ja) * 1988-11-01 1997-11-26 三井石油化学工業株式会社 光磁気記録媒体

Also Published As

Publication number Publication date
DE4192566T1 (enrdf_load_stackoverflow) 1992-10-08
WO1992007358A1 (en) 1992-04-30

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