JPH0259529B2 - - Google Patents

Info

Publication number
JPH0259529B2
JPH0259529B2 JP59018253A JP1825384A JPH0259529B2 JP H0259529 B2 JPH0259529 B2 JP H0259529B2 JP 59018253 A JP59018253 A JP 59018253A JP 1825384 A JP1825384 A JP 1825384A JP H0259529 B2 JPH0259529 B2 JP H0259529B2
Authority
JP
Japan
Prior art keywords
force
layer
rotation angle
amorphous
magneto
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 - Lifetime
Application number
JP59018253A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60163247A (ja
Inventor
Kyuzo Nakamura
Yoshifumi Oota
Shin Asari
Tsutomu Azumi
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.)
Ulvac Inc
Original Assignee
Ulvac 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 Ulvac Inc filed Critical Ulvac Inc
Priority to JP59018253A priority Critical patent/JPS60163247A/ja
Priority to US06/698,480 priority patent/US4661420A/en
Priority to DE8585300775T priority patent/DE3577247D1/de
Priority to EP85300775A priority patent/EP0152269B1/fr
Publication of JPS60163247A publication Critical patent/JPS60163247A/ja
Publication of JPH0259529B2 publication Critical patent/JPH0259529B2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • 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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
JP59018253A 1984-02-06 1984-02-06 光磁気記録体 Granted JPS60163247A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP59018253A JPS60163247A (ja) 1984-02-06 1984-02-06 光磁気記録体
US06/698,480 US4661420A (en) 1984-02-06 1985-02-05 Optical magnetic recording member
DE8585300775T DE3577247D1 (de) 1984-02-06 1985-02-06 Magneto-optischer aufzeichnungstraeger.
EP85300775A EP0152269B1 (fr) 1984-02-06 1985-02-06 Support d'enregistrement magnéto-optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59018253A JPS60163247A (ja) 1984-02-06 1984-02-06 光磁気記録体

Publications (2)

Publication Number Publication Date
JPS60163247A JPS60163247A (ja) 1985-08-26
JPH0259529B2 true JPH0259529B2 (fr) 1990-12-12

Family

ID=11966515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59018253A Granted JPS60163247A (ja) 1984-02-06 1984-02-06 光磁気記録体

Country Status (1)

Country Link
JP (1) JPS60163247A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209947A (ja) * 1984-04-02 1985-10-22 Nec Corp 光磁気記録媒体
JPS60209946A (ja) * 1984-04-02 1985-10-22 Nec Corp 光磁気記録媒体
JPS60231937A (ja) * 1984-05-01 1985-11-18 Ricoh Co Ltd 光磁気記録媒体
JPS6180639A (ja) * 1984-09-28 1986-04-24 Canon Inc 光学的記録媒体
JPS61258353A (ja) * 1985-05-10 1986-11-15 Ricoh Co Ltd 光磁気記録媒体
JPS62157347A (ja) * 1985-12-28 1987-07-13 Kyocera Corp 光磁気記録素子及びその製法
JPS62293542A (ja) * 1986-06-12 1987-12-21 Konica Corp 光磁気記録媒体
JPS6479954A (en) * 1987-09-22 1989-03-24 Kyocera Corp Magneto-optical recording element
US4917970A (en) * 1988-02-01 1990-04-17 Minnesota Mining & Manufacturing Company Magneto optic recording medium with silicon carbide dielectric

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163640A (en) * 1979-06-01 1980-12-19 Sharp Corp Magnetic/optical memory element
JPS57169996A (en) * 1981-04-09 1982-10-19 Sharp Corp Magnetooptic storage element
JPS5938950A (ja) * 1982-08-26 1984-03-03 Sharp Corp 磁気光学記憶素子

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163640A (en) * 1979-06-01 1980-12-19 Sharp Corp Magnetic/optical memory element
JPS57169996A (en) * 1981-04-09 1982-10-19 Sharp Corp Magnetooptic storage element
JPS5938950A (ja) * 1982-08-26 1984-03-03 Sharp Corp 磁気光学記憶素子

Also Published As

Publication number Publication date
JPS60163247A (ja) 1985-08-26

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Legal Events

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