JPH0427617B2 - - Google Patents
Info
- Publication number
- JPH0427617B2 JPH0427617B2 JP62124722A JP12472287A JPH0427617B2 JP H0427617 B2 JPH0427617 B2 JP H0427617B2 JP 62124722 A JP62124722 A JP 62124722A JP 12472287 A JP12472287 A JP 12472287A JP H0427617 B2 JPH0427617 B2 JP H0427617B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- magneto
- recording
- magnetic
- servo
- 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 - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 11
- 230000015654 memory Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 2
- 239000005357 flat glass Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005374 Kerr effect Effects 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910016629 MnBi Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 etc. is formed Inorganic materials 0.000 description 1
- 239000002902 ferrimagnetic material Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- G11B11/10589—Details
-
- 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 |
|---|---|---|---|
| JP12472287A JPS62295238A (ja) | 1987-05-20 | 1987-05-20 | 磁気光学記憶素子 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12472287A JPS62295238A (ja) | 1987-05-20 | 1987-05-20 | 磁気光学記憶素子 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP409081A Division JPS57120253A (en) | 1981-01-14 | 1981-01-14 | Magnetooptical storage elemen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62295238A JPS62295238A (ja) | 1987-12-22 |
| JPH0427617B2 true JPH0427617B2 (zh) | 1992-05-12 |
Family
ID=14892484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12472287A Granted JPS62295238A (ja) | 1987-05-20 | 1987-05-20 | 磁気光学記憶素子 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62295238A (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68928712T2 (de) * | 1988-11-07 | 1998-10-15 | Hitachi Maxell | Magneto-optisches Speichermedium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231503A (en) * | 1975-09-03 | 1977-03-10 | Yasunaga Riken Co Ltd | Fabric form for civil engineering work |
| JPS54130103A (en) * | 1978-03-16 | 1979-10-09 | Philips Nv | Device for writing and reading information on recording carrier body and recording carrier body |
| JPS554793A (en) * | 1978-05-24 | 1980-01-14 | Philips Nv | Information recording element and producing same |
-
1987
- 1987-05-20 JP JP12472287A patent/JPS62295238A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231503A (en) * | 1975-09-03 | 1977-03-10 | Yasunaga Riken Co Ltd | Fabric form for civil engineering work |
| JPS54130103A (en) * | 1978-03-16 | 1979-10-09 | Philips Nv | Device for writing and reading information on recording carrier body and recording carrier body |
| JPS554793A (en) * | 1978-05-24 | 1980-01-14 | Philips Nv | Information recording element and producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62295238A (ja) | 1987-12-22 |
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