DE69207804D1 - Magnetooptischer Aufzeichnungsträger - Google Patents
Magnetooptischer AufzeichnungsträgerInfo
- Publication number
- DE69207804D1 DE69207804D1 DE69207804T DE69207804T DE69207804D1 DE 69207804 D1 DE69207804 D1 DE 69207804D1 DE 69207804 T DE69207804 T DE 69207804T DE 69207804 T DE69207804 T DE 69207804T DE 69207804 D1 DE69207804 D1 DE 69207804D1
- Authority
- DE
- Germany
- 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.)
- Expired - Fee Related
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
- G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
-
- 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
- G11B11/10589—Details
- G11B11/10593—Details for improving read-out properties, e.g. polarisation of light
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3112416A JP2622206B2 (ja) | 1991-04-17 | 1991-04-17 | 光磁気記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69207804D1 true DE69207804D1 (de) | 1996-03-07 |
DE69207804T2 DE69207804T2 (de) | 1996-08-01 |
Family
ID=14586103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1992607804 Expired - Fee Related DE69207804T2 (de) | 1991-04-17 | 1992-04-15 | Magnetooptischer Aufzeichnungsträger |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0509467B1 (de) |
JP (1) | JP2622206B2 (de) |
DE (1) | DE69207804T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2960824B2 (ja) * | 1992-09-30 | 1999-10-12 | ティーディーケイ株式会社 | 光磁気記録媒体 |
JPH0744887A (ja) * | 1993-07-30 | 1995-02-14 | Canon Inc | 光学的記録媒体 |
FR2891554B1 (fr) * | 2005-10-03 | 2008-01-11 | Hef Soc Par Actions Simplifiee | Revetement anti-corrosion a base de silicium, de carbone, d'hydrogene et d'azote. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0349271B1 (de) * | 1988-06-28 | 1995-02-22 | Sharp Kabushiki Kaisha | Magneto-optisches Speichergerät |
JP2660569B2 (ja) * | 1989-02-10 | 1997-10-08 | 三菱電機株式会社 | 光磁気記録媒体 |
JPH03100947A (ja) * | 1989-09-12 | 1991-04-25 | Fuji Photo Film Co Ltd | 光磁気記録媒体 |
JPH03102664A (ja) * | 1989-09-14 | 1991-04-30 | Fuji Photo Film Co Ltd | 光磁気記録媒体 |
JPH03102665A (ja) * | 1989-09-14 | 1991-04-30 | Fuji Photo Film Co Ltd | 光磁気記録媒体 |
JPH03113851A (ja) * | 1989-09-26 | 1991-05-15 | Fuji Photo Film Co Ltd | 光磁気記録媒体 |
-
1991
- 1991-04-17 JP JP3112416A patent/JP2622206B2/ja not_active Expired - Fee Related
-
1992
- 1992-04-15 EP EP19920106477 patent/EP0509467B1/de not_active Expired - Lifetime
- 1992-04-15 DE DE1992607804 patent/DE69207804T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0509467B1 (de) | 1996-01-24 |
DE69207804T2 (de) | 1996-08-01 |
JPH04318346A (ja) | 1992-11-09 |
EP0509467A1 (de) | 1992-10-21 |
JP2622206B2 (ja) | 1997-06-18 |
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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 |