FR2203131B1 - - Google Patents
Info
- Publication number
- FR2203131B1 FR2203131B1 FR7330995A FR7330995A FR2203131B1 FR 2203131 B1 FR2203131 B1 FR 2203131B1 FR 7330995 A FR7330995 A FR 7330995A FR 7330995 A FR7330995 A FR 7330995A FR 2203131 B1 FR2203131 B1 FR 2203131B1
- Authority
- FR
- France
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/85—Coating a support with a magnetic layer by vapour deposition
-
- 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
- H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
- H01F10/28—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers characterised by the composition of the substrate
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722250481 DE2250481C3 (de) | 1972-10-14 | 1972-10-14 | Verfahren zur Herstellung eines magnetischen Aufzeichnungsträgers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2203131A1 FR2203131A1 (US06397114-20020528-M00001.png) | 1974-05-10 |
| FR2203131B1 true FR2203131B1 (US06397114-20020528-M00001.png) | 1976-11-19 |
Family
ID=5859060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7330995A Expired FR2203131B1 (US06397114-20020528-M00001.png) | 1972-10-14 | 1973-08-22 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5433522B2 (US06397114-20020528-M00001.png) |
| DE (1) | DE2250481C3 (US06397114-20020528-M00001.png) |
| FR (1) | FR2203131B1 (US06397114-20020528-M00001.png) |
| GB (1) | GB1379360A (US06397114-20020528-M00001.png) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1599161A (en) * | 1976-07-15 | 1981-09-30 | Matsushita Electric Ind Co Ltd | Magnetic recording medium and method of making the same |
| JPS5389000A (en) * | 1977-01-18 | 1978-08-04 | Mitsubishi Metal Corp | Abrasionnresisting magnetic alloy laminating sheet |
| US4271232A (en) * | 1978-08-28 | 1981-06-02 | International Business Machines Corporation | Amorphous magnetic film |
| US4245008A (en) * | 1978-10-30 | 1981-01-13 | International Business Machines Corporation | Corrosion resistant magnetic recording media |
| DE2909891A1 (de) | 1979-03-14 | 1980-09-25 | Basf Ag | Magnetischer aufzeichnungstraeger |
| JPS5847738Y2 (ja) * | 1980-05-07 | 1983-10-31 | 松下電工株式会社 | 小型電気機器の構造 |
| US4376963A (en) * | 1980-12-19 | 1983-03-15 | International Business Machines Corporation | Composite magnetic recording disk |
| CA1188796A (en) * | 1981-04-14 | 1985-06-11 | Kenji Yazawa | Magnetic recording medium |
| JPS57191830A (en) * | 1981-05-22 | 1982-11-25 | Sony Corp | Magnetic recording medium |
| JPS6080117A (ja) * | 1983-10-11 | 1985-05-08 | Hitachi Condenser Co Ltd | 磁気記録媒体 |
| JPH07118075B2 (ja) * | 1986-09-01 | 1995-12-18 | 株式会社日立製作所 | 磁気デイスク用磁気記録媒体およびその製造法 |
| US5316631A (en) * | 1989-02-16 | 1994-05-31 | Victor Company Of Japan, Ltd. | Method for fabricating a magnetic recording medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1228307B (de) * | 1961-07-17 | 1966-11-10 | Ibm | Magnetischer Aufzeichnungstraeger mit einer Magnetschicht geringer Oberflaechenrauheit und hoher Koerzitivkraft |
| US3342632A (en) * | 1964-08-05 | 1967-09-19 | Ibm | Magnetic coating |
| DE1439443B2 (de) * | 1964-09-16 | 1972-01-13 | Siemens AG, 1000 Berlin u. 8000 München | Verfahren zur herstellung von magnetischen speichermatrizen |
| JPS4414770Y1 (US06397114-20020528-M00001.png) * | 1966-10-24 | 1969-06-24 |
-
1972
- 1972-10-14 DE DE19722250481 patent/DE2250481C3/de not_active Expired
-
1973
- 1973-08-22 FR FR7330995A patent/FR2203131B1/fr not_active Expired
- 1973-09-12 JP JP10226273A patent/JPS5433522B2/ja not_active Expired
- 1973-09-13 GB GB4306073A patent/GB1379360A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4974911A (US06397114-20020528-M00001.png) | 1974-07-19 |
| JPS5433522B2 (US06397114-20020528-M00001.png) | 1979-10-22 |
| FR2203131A1 (US06397114-20020528-M00001.png) | 1974-05-10 |
| GB1379360A (en) | 1975-01-02 |
| DE2250481B2 (de) | 1980-10-30 |
| DE2250481C3 (de) | 1981-08-27 |
| DE2250481A1 (de) | 1974-04-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |