AU2003235131A1 - Magnetic field generator, magneto-optical information storage system, and magneto-optical information storage device - Google Patents

Magnetic field generator, magneto-optical information storage system, and magneto-optical information storage device

Info

Publication number
AU2003235131A1
AU2003235131A1 AU2003235131A AU2003235131A AU2003235131A1 AU 2003235131 A1 AU2003235131 A1 AU 2003235131A1 AU 2003235131 A AU2003235131 A AU 2003235131A AU 2003235131 A AU2003235131 A AU 2003235131A AU 2003235131 A1 AU2003235131 A1 AU 2003235131A1
Authority
AU
Australia
Prior art keywords
magneto
information storage
optical information
magnetic field
field generator
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.)
Abandoned
Application number
AU2003235131A
Inventor
Tohru Fujimaki
Tsuyoshi Matsumoto
Hiroyasu Yoshikawa
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
Publication of AU2003235131A1 publication Critical patent/AU2003235131A1/en
Abandoned 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
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • 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
    • G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • G11B11/10554—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
AU2003235131A 2003-04-25 2003-04-25 Magnetic field generator, magneto-optical information storage system, and magneto-optical information storage device Abandoned AU2003235131A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/005337 WO2004097823A1 (en) 2003-04-25 2003-04-25 Magnetic field generator, magneto-optical information storage system, and magneto-optical information storage device

Publications (1)

Publication Number Publication Date
AU2003235131A1 true AU2003235131A1 (en) 2004-11-23

Family

ID=33398112

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003235131A Abandoned AU2003235131A1 (en) 2003-04-25 2003-04-25 Magnetic field generator, magneto-optical information storage system, and magneto-optical information storage device

Country Status (3)

Country Link
JP (1) JPWO2004097823A1 (en)
AU (1) AU2003235131A1 (en)
WO (1) WO2004097823A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2949800B2 (en) * 1990-07-19 1999-09-20 ソニー株式会社 Magnetic field modulation type overwrite magnetic head and method of manufacturing the same
JPH11250402A (en) * 1998-02-27 1999-09-17 Sony Corp Magneto-optical disk device, magnetic field generator to be used for the disk device and its manufacture
US6351436B1 (en) * 1998-05-11 2002-02-26 Maxtor Corporation Field enhancing magnetic pole for magneto-optical recording and reproducing device
JP2001023260A (en) * 1999-07-08 2001-01-26 Sony Corp Magnetic head for modulation of magnetic field, magneto- optical device, optical pickup device and optical disk device
JP4002084B2 (en) * 2000-10-10 2007-10-31 日立マクセル株式会社 Magneto-optical head and magneto-optical recording apparatus using the same
JP2003051144A (en) * 2001-08-03 2003-02-21 Fujitsu Ltd Magnetic head

Also Published As

Publication number Publication date
WO2004097823A1 (en) 2004-11-11
JPWO2004097823A1 (en) 2006-07-13

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase