GB8610978D0 - Magneto-optical recording medium - Google Patents

Magneto-optical recording medium

Info

Publication number
GB8610978D0
GB8610978D0 GB868610978A GB8610978A GB8610978D0 GB 8610978 D0 GB8610978 D0 GB 8610978D0 GB 868610978 A GB868610978 A GB 868610978A GB 8610978 A GB8610978 A GB 8610978A GB 8610978 D0 GB8610978 D0 GB 8610978D0
Authority
GB
United Kingdom
Prior art keywords
magneto
recording medium
optical recording
optical
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.)
Granted
Application number
GB868610978A
Other versions
GB2175160A (en
GB2175160B (en
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
Publication of GB8610978D0 publication Critical patent/GB8610978D0/en
Publication of GB2175160A publication Critical patent/GB2175160A/en
Application granted granted Critical
Publication of GB2175160B publication Critical patent/GB2175160B/en
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/13—Amorphous metallic alloys, e.g. glassy metals
    • H01F10/133—Amorphous metallic alloys, e.g. glassy metals containing rare earth metals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
GB08610978A 1985-05-09 1986-05-06 Magneto-optical recording medium Granted GB2175160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9668785A JPS61255546A (en) 1985-05-09 1985-05-09 Photomagnetic recording medium

Publications (3)

Publication Number Publication Date
GB8610978D0 true GB8610978D0 (en) 1986-06-11
GB2175160A GB2175160A (en) 1986-11-19
GB2175160B GB2175160B (en) 1989-08-16

Family

ID=14171702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08610978A Granted GB2175160A (en) 1985-05-09 1986-05-06 Magneto-optical recording medium

Country Status (3)

Country Link
JP (1) JPS61255546A (en)
GB (1) GB2175160A (en)
NL (1) NL8601069A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61265756A (en) * 1985-05-20 1986-11-25 Pioneer Electronic Corp Photomagnetic recording medium
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
EP0310680A4 (en) * 1987-04-17 1990-10-03 Mitsui Petrochemical Industries, Ltd. Photomagnetic recording membrane
CA1303739C (en) * 1987-06-02 1992-06-16 Fred W. Spong Magneto-optic records
EP0331737B1 (en) * 1987-08-08 1996-06-05 Mitsui Petrochemical Industries, Ltd. Photomagnetic recording medium
DE3884345D1 (en) * 1987-10-30 1993-10-28 Hoechst Ag Amorphous magneto-optical recording material.
JP2673807B2 (en) * 1987-10-30 1997-11-05 パイオニア株式会社 Method for manufacturing magneto-optical recording medium
DE3803000A1 (en) * 1988-02-02 1989-08-10 Basf Ag SURFACE MULTI-LAYER MAGNETO-OPTICAL RECORDING MATERIAL
JPH0254448A (en) * 1988-08-18 1990-02-23 Nec Corp Magneto-optical disk medium
MY104246A (en) * 1988-10-20 1994-02-28 Mitsui Chemicals Inc Magnetooptical recording media.
DE3904611A1 (en) * 1989-02-16 1990-08-23 Hoechst Ag MAGNETOOPTIC LAYER AND METHOD FOR THEIR PRODUCTION
DE4137427C1 (en) * 1991-11-14 1993-01-14 Hoechst Ag, 6230 Frankfurt, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117749A (en) * 1984-11-13 1986-06-05 Seiko Instr & Electronics Ltd Photomagnetic recording medium

Also Published As

Publication number Publication date
GB2175160A (en) 1986-11-19
NL8601069A (en) 1986-12-01
GB2175160B (en) 1989-08-16
JPS61255546A (en) 1986-11-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990506