JPS6464148A - Magneto-optical disk - Google Patents
Magneto-optical diskInfo
- Publication number
- JPS6464148A JPS6464148A JP22013287A JP22013287A JPS6464148A JP S6464148 A JPS6464148 A JP S6464148A JP 22013287 A JP22013287 A JP 22013287A JP 22013287 A JP22013287 A JP 22013287A JP S6464148 A JPS6464148 A JP S6464148A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- magneto
- resin
- protective film
- film
- 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.)
- Pending
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
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22013287A JPS6464148A (en) | 1987-09-04 | 1987-09-04 | Magneto-optical disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22013287A JPS6464148A (en) | 1987-09-04 | 1987-09-04 | Magneto-optical disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6464148A true JPS6464148A (en) | 1989-03-10 |
Family
ID=16746407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22013287A Pending JPS6464148A (en) | 1987-09-04 | 1987-09-04 | Magneto-optical disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6464148A (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0461911A2 (en) * | 1990-06-13 | 1991-12-18 | Sharp Kabushiki Kaisha | Magneto-optical disk and manufacturing methods thereof |
| US5336531A (en) * | 1990-02-06 | 1994-08-09 | Sharp Kabushiki Kaisha | Magneto-optical disk and manufacturing methods thereof |
-
1987
- 1987-09-04 JP JP22013287A patent/JPS6464148A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5336531A (en) * | 1990-02-06 | 1994-08-09 | Sharp Kabushiki Kaisha | Magneto-optical disk and manufacturing methods thereof |
| EP0461911A2 (en) * | 1990-06-13 | 1991-12-18 | Sharp Kabushiki Kaisha | Magneto-optical disk and manufacturing methods thereof |
| US5233597A (en) * | 1990-06-13 | 1993-08-03 | Sharp Kabushiki Kaisha | Magneto-optical disk having a layer of varying thickness |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0339616A3 (en) | Apparatus for manufacturing optical information recording medium | |
| EP0301866A3 (en) | Process for producing magnetic hub | |
| JPS6464148A (en) | Magneto-optical disk | |
| JPH04370548A (ja) | 光記録ディスク用基体の製造方法およびそれを実施するための装置 | |
| JPS6440881A (en) | Hologram having protective layer | |
| JPS57212642A (en) | Recording medium | |
| JPS55152028A (en) | Reproduction of information recorded carrier | |
| JPS6430041A (en) | Optical disk | |
| JPS5315112A (en) | Chucking mechanism | |
| JPS57105805A (en) | Access mechanism for magnetic disc device | |
| JPS6442042A (en) | Magneto-optical disk | |
| JPS6417231A (en) | Reversible optical disk | |
| JPS6459684A (en) | Optical disk substrate | |
| JPS57212028A (en) | Production of disk form substrate | |
| JPS56163522A (en) | Magnetic recording medium | |
| JPS6453324A (en) | Magnetic recording medium | |
| JPS5319808A (en) | Magnetic recording medium and its production | |
| JPS5689921A (en) | Production of disc and apparatus therefor | |
| JPS6486313A (en) | Magnetic disk | |
| JPS57172542A (en) | Information storage medium | |
| JPS6455757A (en) | Production of substrate for optical recording medium and mold for production to be used in said method | |
| JPS6457433A (en) | Optical disk | |
| JPS5755504A (en) | Production of disk substrate | |
| JPH01140630U (ja) | ||
| JPS5694504A (en) | Information carrier with high density |