JPS6227458B2 - - Google Patents

Info

Publication number
JPS6227458B2
JPS6227458B2 JP56054070A JP5407081A JPS6227458B2 JP S6227458 B2 JPS6227458 B2 JP S6227458B2 JP 56054070 A JP56054070 A JP 56054070A JP 5407081 A JP5407081 A JP 5407081A JP S6227458 B2 JPS6227458 B2 JP S6227458B2
Authority
JP
Japan
Prior art keywords
thin film
magnetic thin
magnetic
magneto
transparent
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
Application number
JP56054070A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57169996A (en
Inventor
Akira Takahashi
Kenji Oota
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP5407081A priority Critical patent/JPS57169996A/ja
Priority to CA000393547A priority patent/CA1185013A/en
Priority to US06/337,132 priority patent/US4390600A/en
Priority to GB8200314A priority patent/GB2094540B/en
Priority to IT1905782A priority patent/IT1149434B/it
Priority to DE3200661A priority patent/DE3200661C2/de
Priority to FR8200451A priority patent/FR2497994B1/fr
Publication of JPS57169996A publication Critical patent/JPS57169996A/ja
Priority to US06/476,345 priority patent/US4489139A/en
Publication of JPS6227458B2 publication Critical patent/JPS6227458B2/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
JP5407081A 1981-01-14 1981-04-09 Magnetooptic storage element Granted JPS57169996A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP5407081A JPS57169996A (en) 1981-04-09 1981-04-09 Magnetooptic storage element
CA000393547A CA1185013A (en) 1981-01-14 1982-01-04 Magneto-optic memory medium
US06/337,132 US4390600A (en) 1981-01-14 1982-01-05 Magneto-optic memory medium
GB8200314A GB2094540B (en) 1981-01-14 1982-01-06 Magnetic-optical memory medium
IT1905782A IT1149434B (it) 1981-01-14 1982-01-12 Supporto per una memoria di tipo magneto-ottico
DE3200661A DE3200661C2 (de) 1981-01-14 1982-01-12 Magneto-optischer Speicher
FR8200451A FR2497994B1 (fr) 1981-01-14 1982-01-13 Support de memoire magneto-optique
US06/476,345 US4489139A (en) 1981-01-14 1983-03-17 Magneto-optic memory medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5407081A JPS57169996A (en) 1981-04-09 1981-04-09 Magnetooptic storage element

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP14889089A Division JPH038155A (ja) 1989-06-12 1989-06-12 磁気光学記憶素子

Publications (2)

Publication Number Publication Date
JPS57169996A JPS57169996A (en) 1982-10-19
JPS6227458B2 true JPS6227458B2 (en]) 1987-06-15

Family

ID=12960353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5407081A Granted JPS57169996A (en) 1981-01-14 1981-04-09 Magnetooptic storage element

Country Status (1)

Country Link
JP (1) JPS57169996A (en])

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0284118A (ja) * 1988-09-20 1990-03-26 Hitachi Reinetsu Kk ロックウール裁培装置
JPH02111255U (en]) * 1989-02-27 1990-09-05

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979445A (ja) * 1982-10-28 1984-05-08 Sharp Corp 光磁気記憶素子
JPS59110056A (ja) * 1982-12-13 1984-06-25 Matsushita Electric Ind Co Ltd 光磁気記録媒体
JPS59116990A (ja) * 1982-12-24 1984-07-06 Ricoh Co Ltd 光磁気記録媒体
JPS6063747A (ja) * 1983-09-16 1985-04-12 Sharp Corp 磁気光学記憶素子
JPS60163247A (ja) * 1984-02-06 1985-08-26 Ulvac Corp 光磁気記録体
US4939023A (en) * 1984-08-13 1990-07-03 Canon Kabushiki Kaisha Opto-magnetic recording medium
JP2826726B2 (ja) * 1986-05-28 1998-11-18 セイコーエプソン株式会社 光記録媒体の製造方法
JP2548697B2 (ja) * 1985-11-22 1996-10-30 三菱電機株式会社 磁気光学記憶素子の製造方法
JPS62139156A (ja) * 1985-12-11 1987-06-22 Sharp Corp 光記録デバイスの製造方法
JPS62293539A (ja) * 1986-06-12 1987-12-21 Konica Corp 光磁気記録媒体
JPH01173454A (ja) * 1987-12-28 1989-07-10 Mitsubishi Kasei Corp 光磁気記録媒体
JPH01173455A (ja) * 1987-12-28 1989-07-10 Mitsubishi Kasei Corp 光磁気記録媒体
JP2506935B2 (ja) * 1988-05-16 1996-06-12 三菱化学株式会社 光磁気記録媒体
JPH01171142A (ja) * 1987-12-25 1989-07-06 Mitsubishi Kasei Corp 光磁気記録媒体
JP2506867B2 (ja) * 1987-12-17 1996-06-12 松下電器産業株式会社 光ディスク
JPH01160075A (ja) * 1987-12-17 1989-06-22 Matsushita Electric Ind Co Ltd 半導体レーザ
JP2754658B2 (ja) * 1988-03-07 1998-05-20 三菱化学株式会社 光磁気記録媒体
JPH0413251A (ja) * 1990-04-28 1992-01-17 Kyocera Corp 光磁気記録素子及びその製造方法
DE69130441T2 (de) * 1990-08-07 1999-04-08 Hitachi Maxell, Ltd., Ibaraki, Osaka Magnetooptischer Aufzeichnungsträger
JPH03156755A (ja) * 1990-10-19 1991-07-04 Sharp Corp 光メモリ素子の製造方法
JP2662474B2 (ja) * 1991-07-26 1997-10-15 シャープ株式会社 光磁気記憶素子
US5637411A (en) * 1991-07-29 1997-06-10 Hitachi Maxell, Ltd. Magneto-optical recording medium and process for producing the same
JPH0644626A (ja) * 1992-08-27 1994-02-18 Canon Inc 磁性薄膜記録媒体
JP2511230B2 (ja) * 1992-12-25 1996-06-26 シャープ株式会社 光メモリ素子
JPH06318347A (ja) * 1993-10-12 1994-11-15 Daicel Chem Ind Ltd 光磁気記録ディスク

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174140A (en) * 1959-07-01 1965-03-16 Ibm Magneto-optical recording and readout device
US3594064A (en) * 1969-06-25 1971-07-20 Du Pont Enhanced magneto-optic mirror apparatus
JPS5114263A (en) * 1974-07-26 1976-02-04 Hitachi Ltd Setsugono roeiboshiho
JPS5232931A (en) * 1975-09-09 1977-03-12 Fuji Heavy Ind Ltd Method for coating joint surfaces of two parts
JPS5441703A (en) * 1977-09-09 1979-04-03 Hitachi Ltd Information recording plate
US4189735A (en) * 1978-02-24 1980-02-19 Rca Corporation Record playback apparatus and information record therefor
JPS5534340A (en) * 1978-08-31 1980-03-10 Nippon Hoso Kyokai <Nhk> Recording reproducing system by light beam
JPS5539047A (en) * 1978-09-13 1980-03-18 Ricoh Co Ltd Detection of advancing speed of recording element
JPS5587332A (en) * 1978-12-25 1980-07-02 Matsushita Electric Ind Co Ltd Magnetic light recording medium
JPS5589928A (en) * 1978-12-27 1980-07-08 Fujitsu Ltd Vertical magnetic recorder and its reproduction system
JPS594773B2 (ja) * 1979-04-12 1984-01-31 日本電信電話株式会社 転送速度変換装置
JPS5923017B2 (ja) * 1979-06-01 1984-05-30 シャープ株式会社 磁気光学記憶素子
JPS56137537A (en) * 1980-03-27 1981-10-27 Matsushita Electric Ind Co Ltd Optical recording member and its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0284118A (ja) * 1988-09-20 1990-03-26 Hitachi Reinetsu Kk ロックウール裁培装置
JPH02111255U (en]) * 1989-02-27 1990-09-05

Also Published As

Publication number Publication date
JPS57169996A (en) 1982-10-19

Similar Documents

Publication Publication Date Title
JPS6227458B2 (en])
US4390600A (en) Magneto-optic memory medium
EP0525192A1 (en) Optically recording medium
CA1320269C (en) Magneto-optic recording structure and method
JPS586542A (ja) 磁気光学記憶素子
JPH034974B2 (en])
JPH0444333B2 (en])
JPH02779B2 (en])
JP2839498B2 (ja) 光ディスク媒体
JPH0263262B2 (en])
US5862122A (en) Phase change optical disk and a method for recording and playbacking optical information on or from an optical disk
JPS5938950A (ja) 磁気光学記憶素子
JPH0432449B2 (en])
JP2672914B2 (ja) 磁気光学記憶素子
JPH0263261B2 (en])
JP2565884B2 (ja) 磁気光学記憶素子
JPH034973B2 (en])
JPH03178052A (ja) 光メモリ媒体
JP2801984B2 (ja) 磁気光学記憶素子
JPH0421936B2 (en])
JPH0462140B2 (en])
JPS61269248A (ja) 光磁気デイスク
JPH0350342B2 (en])
JPH038023B2 (en])
JP2510320B2 (ja) 光記録媒体