JPH0123845B2 - - Google Patents

Info

Publication number
JPH0123845B2
JPH0123845B2 JP56073388A JP7338881A JPH0123845B2 JP H0123845 B2 JPH0123845 B2 JP H0123845B2 JP 56073388 A JP56073388 A JP 56073388A JP 7338881 A JP7338881 A JP 7338881A JP H0123845 B2 JPH0123845 B2 JP H0123845B2
Authority
JP
Japan
Prior art keywords
light beam
recording
magnetic
magnetic recording
recording medium
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
JP56073388A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57189302A (en
Inventor
Tokio Tatsuta
Masao Hyane
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7338881A priority Critical patent/JPS57189302A/ja
Publication of JPS57189302A publication Critical patent/JPS57189302A/ja
Publication of JPH0123845B2 publication Critical patent/JPH0123845B2/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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10528—Shaping of magnetic domains, e.g. form, dimensions

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP7338881A 1981-05-18 1981-05-18 Optical magnetic recording system Granted JPS57189302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7338881A JPS57189302A (en) 1981-05-18 1981-05-18 Optical magnetic recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7338881A JPS57189302A (en) 1981-05-18 1981-05-18 Optical magnetic recording system

Publications (2)

Publication Number Publication Date
JPS57189302A JPS57189302A (en) 1982-11-20
JPH0123845B2 true JPH0123845B2 (enrdf_load_stackoverflow) 1989-05-09

Family

ID=13516755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7338881A Granted JPS57189302A (en) 1981-05-18 1981-05-18 Optical magnetic recording system

Country Status (1)

Country Link
JP (1) JPS57189302A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215008A (ja) * 1983-05-20 1984-12-04 Canon Inc 光磁気記録方法
JPS61214228A (ja) * 1985-03-20 1986-09-24 Hitachi Ltd 情報記録方法
JP2800003B2 (ja) * 1987-03-25 1998-09-21 株式会社リコー 光磁気記録方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186248A (en) * 1981-05-09 1982-11-16 Ricoh Co Ltd Vertically thermomagnetic recording and reproducing system

Also Published As

Publication number Publication date
JPS57189302A (en) 1982-11-20

Similar Documents

Publication Publication Date Title
JPH056590A (ja) 光磁気記録装置
WO1999024978A1 (fr) Enregistreur magnetique, dispositif d'enregistrement/reproduction magnetique et procede d'enregistrement magnetique
JP3491191B2 (ja) 光磁気記録媒体のチルト補正方法、その実施に使用する装置及び光磁気記録媒体
JPH04176039A (ja) 光磁気記録媒体の記録方法
JPH0721894B2 (ja) 光磁気記録方法
JP2839498B2 (ja) 光ディスク媒体
JP3114205B2 (ja) 光記録媒体の記録再生方法
JPH0123845B2 (enrdf_load_stackoverflow)
JP3412163B2 (ja) 光磁気ディスク装置
US5452273A (en) Optical recording method and apparatus therefor
JPS5830656B2 (ja) 光磁気記録媒体
JPS61229247A (ja) 光磁気媒体
EP0575738A2 (en) System and method for improving long term stability of exchange-coupled optical media
JPS60147950A (ja) 消去同時記録が可能な情報フアイル
JPH1125529A (ja) 情報記録媒体及びその再生方法
JPS62208445A (ja) 光磁気記録方法
JPH0721893B2 (ja) 光磁気記録方法
JPS62208444A (ja) 光磁気記録方法
JPS5925290B2 (ja) 磁気光学記録装置
JPS59160847A (ja) 光磁気記録媒体
JPS6035303A (ja) 書き換え可能な光学式情報記録再生装置
JPH0263261B2 (enrdf_load_stackoverflow)
KR100447159B1 (ko) 광자기기록매체
JPH0734272B2 (ja) 光磁気記録媒体
JPH01273251A (ja) 光磁気記録媒体の初期化方法