JPS5883346A - 光磁気記録媒体 - Google Patents

光磁気記録媒体

Info

Publication number
JPS5883346A
JPS5883346A JP56178971A JP17897181A JPS5883346A JP S5883346 A JPS5883346 A JP S5883346A JP 56178971 A JP56178971 A JP 56178971A JP 17897181 A JP17897181 A JP 17897181A JP S5883346 A JPS5883346 A JP S5883346A
Authority
JP
Japan
Prior art keywords
recording
layer
recording medium
medium layer
readout
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
JP56178971A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6227459B2 (OSRAM
Inventor
Shinsuke Tanaka
信介 田中
Fujio Tanaka
田中　富士雄
Yasuyuki Nagao
長尾　康之
Osatake Imamura
今村　修武
Chuichi Oota
太田　忠一
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP56178971A priority Critical patent/JPS5883346A/ja
Priority to US06/440,299 priority patent/US4559573A/en
Publication of JPS5883346A publication Critical patent/JPS5883346A/ja
Publication of JPS6227459B2 publication Critical patent/JPS6227459B2/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
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12542—More than one such component
    • Y10T428/12549—Adjacent to each other

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thin Magnetic Films (AREA)
JP56178971A 1981-11-10 1981-11-10 光磁気記録媒体 Granted JPS5883346A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56178971A JPS5883346A (ja) 1981-11-10 1981-11-10 光磁気記録媒体
US06/440,299 US4559573A (en) 1981-11-10 1982-11-09 Magneto-optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56178971A JPS5883346A (ja) 1981-11-10 1981-11-10 光磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5883346A true JPS5883346A (ja) 1983-05-19
JPS6227459B2 JPS6227459B2 (OSRAM) 1987-06-15

Family

ID=16057857

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56178971A Granted JPS5883346A (ja) 1981-11-10 1981-11-10 光磁気記録媒体

Country Status (2)

Country Link
US (1) US4559573A (OSRAM)
JP (1) JPS5883346A (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549630A1 (fr) * 1983-07-20 1985-01-25 Kokusai Denshin Denwa Co Ltd Support d'enregistrement optico-magnetique
US5093174A (en) * 1989-07-04 1992-03-03 Teijin Limited Optical recording medium
US6241179B1 (en) 1998-05-18 2001-06-05 Kabushiki Kaisha Tokyo Kikai Seisakusho Method and apparatus for web flutter containment, and application to web splicing

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127527A (ja) * 1983-12-15 1985-07-08 Saiteku Kk 膜状積重磁気記録媒体およびその製造方法
JPH061564B2 (ja) * 1984-02-22 1994-01-05 株式会社ニコン 光磁気記録媒体
JPS6122452A (ja) * 1984-07-09 1986-01-31 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
US4922454A (en) * 1984-10-30 1990-05-01 Brother Kogyo Kabushiki Kaisha Magneto-optical memory medium and apparatus for writing and reading information on and from the medium
US4771415A (en) * 1985-02-27 1988-09-13 Brother Kogyo Kabushiki Kaisha Optical data storage and readout apparatus and head, using optical fibers between stationary and movable units
US5239524A (en) * 1985-06-11 1993-08-24 Nikon Corporation Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor
US4794560A (en) * 1985-09-30 1988-12-27 International Business Machines Corporation Eraseable self biasing thermal magneto-optic medium
JPS6283458U (OSRAM) * 1985-11-13 1987-05-28
US4789606A (en) * 1986-04-17 1988-12-06 Fuji Photo Film Co., Ltd. Magneto-optical recording medium
JPS63102031U (OSRAM) * 1986-12-22 1988-07-02
EP0282356B1 (en) * 1987-03-13 1994-12-07 Canon Kabushiki Kaisha Magneto-optical recording medium and method
US5265073A (en) * 1987-03-13 1993-11-23 Canon Kabushiki Kaisha Overwritable magneto-optical recording medium having two-layer magnetic films wherein one of the films contains one or more of Cu, Ag, Ti, Mn, B, Pt, Si, Ge, Cr and Al, and a method of recording on the same
US5087532A (en) * 1989-08-01 1992-02-11 Minnesota Mining And Manufacturing Company Direct-overwrite magneto-optic media
US4992338A (en) * 1990-03-05 1991-02-12 Eastman Kodak Company Multilayer magnetooptic recording medium with a polarizable palladium intermediate layer
KR0172861B1 (ko) * 1990-08-03 1999-04-15 이헌조 광자기 디스크구조
JP2786360B2 (ja) * 1991-12-05 1998-08-13 シャープ株式会社 光磁気ディスク

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55122244A (en) * 1979-03-07 1980-09-19 Nippon Hoso Kyokai <Nhk> Photomagnetic recording and reproducing method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307156A (en) * 1978-06-13 1981-12-22 Nippon Electric Co., Ltd. Magnetic record member
DE2911992C2 (de) * 1979-03-27 1981-12-10 Philips Patentverwaltung Gmbh, 2000 Hamburg Magnetooptisches Speicherelement, Verfahren zu seiner Herstellung und es verwendende Speichervorrichtung
US4467383A (en) * 1980-02-23 1984-08-21 Sharp Kabushiki Kaisha Magnetooptic memory medium
US4414650A (en) * 1980-06-23 1983-11-08 Sharp Kabushiki Kaisha Magneto-optic memory element
CA1185013A (en) * 1981-01-14 1985-04-02 Kenji Ohta Magneto-optic memory medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55122244A (en) * 1979-03-07 1980-09-19 Nippon Hoso Kyokai <Nhk> Photomagnetic recording and reproducing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549630A1 (fr) * 1983-07-20 1985-01-25 Kokusai Denshin Denwa Co Ltd Support d'enregistrement optico-magnetique
US5093174A (en) * 1989-07-04 1992-03-03 Teijin Limited Optical recording medium
US6241179B1 (en) 1998-05-18 2001-06-05 Kabushiki Kaisha Tokyo Kikai Seisakusho Method and apparatus for web flutter containment, and application to web splicing

Also Published As

Publication number Publication date
US4559573A (en) 1985-12-17
JPS6227459B2 (OSRAM) 1987-06-15

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