JPS61214254A - 光磁気記録材料 - Google Patents

光磁気記録材料

Info

Publication number
JPS61214254A
JPS61214254A JP60054422A JP5442285A JPS61214254A JP S61214254 A JPS61214254 A JP S61214254A JP 60054422 A JP60054422 A JP 60054422A JP 5442285 A JP5442285 A JP 5442285A JP S61214254 A JPS61214254 A JP S61214254A
Authority
JP
Japan
Prior art keywords
film
amorphous
recording
thermal stability
temp
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
JP60054422A
Other languages
English (en)
Japanese (ja)
Inventor
Shinji Takayama
高山　新司
Toshio Niihara
敏夫 新原
Katsuhiro Kaneko
金子　克弘
Masahiko Takahashi
正彦 高橋
Ken Sugita
杉田　愃
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP60054422A priority Critical patent/JPS61214254A/ja
Priority to NL8600379A priority patent/NL191807C/xx
Priority to DE19863604642 priority patent/DE3604642A1/de
Priority to KR1019860001614A priority patent/KR940008408B1/ko
Publication of JPS61214254A publication Critical patent/JPS61214254A/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thin Magnetic Films (AREA)
JP60054422A 1985-03-20 1985-03-20 光磁気記録材料 Pending JPS61214254A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP60054422A JPS61214254A (ja) 1985-03-20 1985-03-20 光磁気記録材料
NL8600379A NL191807C (nl) 1985-03-20 1986-02-14 Magneto-optisch registratiemiddel.
DE19863604642 DE3604642A1 (de) 1985-03-20 1986-02-14 Magnetooptisches aufzeichnungsmedium
KR1019860001614A KR940008408B1 (ko) 1985-03-20 1986-03-07 광자기 기록매체

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60054422A JPS61214254A (ja) 1985-03-20 1985-03-20 光磁気記録材料

Publications (1)

Publication Number Publication Date
JPS61214254A true JPS61214254A (ja) 1986-09-24

Family

ID=12970271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60054422A Pending JPS61214254A (ja) 1985-03-20 1985-03-20 光磁気記録材料

Country Status (4)

Country Link
JP (1) JPS61214254A (fr)
KR (1) KR940008408B1 (fr)
DE (1) DE3604642A1 (fr)
NL (1) NL191807C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6297153A (ja) * 1985-10-23 1987-05-06 Sumitomo Metal Mining Co Ltd 磁性薄膜記録媒体
JPS62132254A (ja) * 1985-12-05 1987-06-15 Hitachi Maxell Ltd 光磁気記録媒体

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0782670B2 (ja) * 1985-07-12 1995-09-06 株式会社日立製作所 光磁気記録媒体
KR890012281A (ko) * 1987-01-14 1989-08-25 도날드 밀러 셀 안정한 자기 광학기록매체
DE3912378A1 (de) * 1988-04-14 1989-10-26 Ricoh Kk Magneto-optisches aufzeichnungsmaterial
JP3130929B2 (ja) * 1990-08-10 2001-01-31 ミネソタ マイニング アンド マニュファクチャリング カンパニー 高い記憶密度と直接重ね書きケイパビリティを有する熱磁気記録システム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984358A (ja) * 1982-11-04 1984-05-16 Seiko Instr & Electronics Ltd 光磁気記録媒体
JPS6115308A (ja) * 1984-07-02 1986-01-23 Hitachi Ltd 光磁気記録材料
JPS6119644A (ja) * 1984-07-06 1986-01-28 Idemitsu Petrochem Co Ltd 線状低密度ポリエチレン樹脂組成物
JPS6134744A (ja) * 1984-07-25 1986-02-19 Hitachi Ltd 磁気光学記録媒体
JPS6184803A (ja) * 1984-10-03 1986-04-30 Oki Electric Ind Co Ltd 光磁気記録用材料

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7900921A (nl) * 1979-02-06 1980-08-08 Philips Nv Thermomagnetische informatiedrager en optische geheu- geninrichting voorzien van een dergelijke informatie- drager.
JPS6032331B2 (ja) * 1980-03-12 1985-07-27 ケイディディ株式会社 磁気光学記録媒体
JPS5873746A (ja) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
CA1206505A (fr) * 1982-03-18 1986-06-24 Richard A. Phillips Protection d'elements sous eau
DE3317101A1 (de) * 1982-05-10 1983-11-10 Canon K.K., Tokyo Magnetooptischer aufzeichnungstraeger
DE3382791T2 (de) * 1982-12-15 1995-12-07 Sharp Kk Magneto-optischer Speicher.
JPS59178641A (ja) * 1983-03-29 1984-10-09 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984358A (ja) * 1982-11-04 1984-05-16 Seiko Instr & Electronics Ltd 光磁気記録媒体
JPS6115308A (ja) * 1984-07-02 1986-01-23 Hitachi Ltd 光磁気記録材料
JPS6119644A (ja) * 1984-07-06 1986-01-28 Idemitsu Petrochem Co Ltd 線状低密度ポリエチレン樹脂組成物
JPS6134744A (ja) * 1984-07-25 1986-02-19 Hitachi Ltd 磁気光学記録媒体
JPS6184803A (ja) * 1984-10-03 1986-04-30 Oki Electric Ind Co Ltd 光磁気記録用材料

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6297153A (ja) * 1985-10-23 1987-05-06 Sumitomo Metal Mining Co Ltd 磁性薄膜記録媒体
JPS62132254A (ja) * 1985-12-05 1987-06-15 Hitachi Maxell Ltd 光磁気記録媒体

Also Published As

Publication number Publication date
DE3604642C2 (fr) 1993-02-11
DE3604642A1 (de) 1986-10-02
NL191807C (nl) 1996-08-02
KR860007645A (ko) 1986-10-15
NL8600379A (nl) 1986-10-16
NL191807B (nl) 1996-04-01
KR940008408B1 (ko) 1994-09-14

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