DE69019860T2 - Magnettooptisches Aufzeichnungsgerät. - Google Patents

Magnettooptisches Aufzeichnungsgerät.

Info

Publication number
DE69019860T2
DE69019860T2 DE1990619860 DE69019860T DE69019860T2 DE 69019860 T2 DE69019860 T2 DE 69019860T2 DE 1990619860 DE1990619860 DE 1990619860 DE 69019860 T DE69019860 T DE 69019860T DE 69019860 T2 DE69019860 T2 DE 69019860T2
Authority
DE
Germany
Prior art keywords
magnetto
recording device
optical recording
optical
recording
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 - Fee Related
Application number
DE1990619860
Other languages
English (en)
Other versions
DE69019860D1 (de
Inventor
Kyo Akagi
Takeshi Nakao
Masahiro Ojima
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
Publication of DE69019860D1 publication Critical patent/DE69019860D1/de
Application granted granted Critical
Publication of DE69019860T2 publication Critical patent/DE69019860T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/1058—Flying heads
DE1990619860 1989-03-31 1990-03-30 Magnettooptisches Aufzeichnungsgerät. Expired - Fee Related DE69019860T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7823589 1989-03-31

Publications (2)

Publication Number Publication Date
DE69019860D1 DE69019860D1 (de) 1995-07-13
DE69019860T2 true DE69019860T2 (de) 1995-12-14

Family

ID=13656380

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990619860 Expired - Fee Related DE69019860T2 (de) 1989-03-31 1990-03-30 Magnettooptisches Aufzeichnungsgerät.

Country Status (2)

Country Link
EP (1) EP0390221B1 (de)
DE (1) DE69019860T2 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118025A (ja) * 1981-12-29 1983-07-13 Fujitsu Ltd 光磁気ヘツド
JPH06105541B2 (ja) * 1985-08-09 1994-12-21 日本電信電話株式会社 記録再生方式
JP2575687B2 (ja) * 1987-03-06 1997-01-29 株式会社日立製作所 光磁気記憶装置

Also Published As

Publication number Publication date
EP0390221B1 (de) 1995-06-07
EP0390221A2 (de) 1990-10-03
DE69019860D1 (de) 1995-07-13
EP0390221A3 (de) 1992-03-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee