NL7015748A - - Google Patents
Info
- Publication number
- NL7015748A NL7015748A NL7015748A NL7015748A NL7015748A NL 7015748 A NL7015748 A NL 7015748A NL 7015748 A NL7015748 A NL 7015748A NL 7015748 A NL7015748 A NL 7015748A NL 7015748 A NL7015748 A NL 7015748A
- Authority
- NL
- Netherlands
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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70636—CrO2
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44086295A JPS4912958B1 (enExample) | 1969-10-27 | 1969-10-27 | |
| JP8704269 | 1969-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7015748A true NL7015748A (enExample) | 1971-04-29 |
Family
ID=26427445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7015748A NL7015748A (enExample) | 1969-10-27 | 1970-10-27 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3640871A (enExample) |
| DE (1) | DE2053899B2 (enExample) |
| FR (1) | FR2066473A5 (enExample) |
| GB (1) | GB1318904A (enExample) |
| NL (1) | NL7015748A (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954641A (en) * | 1970-09-22 | 1976-05-04 | Matsushita Electric Industrial Co., Ltd. | Process for the preparation of sulfur modified ferromagnetic chromium oxide |
| JPS4918796A (enExample) * | 1972-06-05 | 1974-02-19 | ||
| US4018690A (en) * | 1973-04-13 | 1977-04-19 | Eastman Kodak Company | Process for preparing sulfur-containing ferromagnetic chromium oxide |
| DE3263019D1 (en) * | 1981-10-26 | 1985-05-15 | Du Pont | Surface modified ferromagnetic chromium dioxide |
| DE3837646A1 (de) * | 1988-11-05 | 1990-05-10 | Basf Ag | Nadelfoermiges, im wesentlichen aus chromdioxid bestehendes, ferromagnetisches material |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2923684A (en) * | 1957-06-19 | 1960-02-02 | Du Pont | Tin modified ferromagnetic chromium oxide, its preparation and use in recording members |
| US3034988A (en) * | 1958-08-22 | 1962-05-15 | Du Pont | Modified chromium oxide ferromagnetic compositions, their preparation and use |
| US3243260A (en) * | 1961-06-12 | 1966-03-29 | Matsushita Electric Industrial Co Ltd | Method for preparing cro2 of rutile type crystalline structure |
| US3423320A (en) * | 1965-12-14 | 1969-01-21 | Du Pont | Preparation of ferromagnetic chromium dioxide |
| DE1771869B1 (de) * | 1967-08-10 | 1972-02-03 | Matsushita Electric Ind Co Ltd | Tellur zinn modifiziertes chromdioxid |
| DE1771867B1 (de) * | 1968-02-23 | 1972-02-03 | Matsushita Electric Ind Co Ltd | Tellur calcium modifiziertes chromdioxid |
-
1970
- 1970-10-22 US US83167A patent/US3640871A/en not_active Expired - Lifetime
- 1970-10-23 FR FR7038388A patent/FR2066473A5/fr not_active Expired
- 1970-10-26 DE DE19702053899 patent/DE2053899B2/de active Granted
- 1970-10-27 NL NL7015748A patent/NL7015748A/xx unknown
- 1970-10-27 GB GB5096970A patent/GB1318904A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2066473A5 (enExample) | 1971-08-06 |
| US3640871A (en) | 1972-02-08 |
| DE2053899B2 (de) | 1976-02-12 |
| GB1318904A (en) | 1973-05-31 |
| DE2053899A1 (de) | 1972-03-09 |