DD105920A5 - - Google Patents
Info
- Publication number
- DD105920A5 DD105920A5 DD173439A DD17343973A DD105920A5 DD 105920 A5 DD105920 A5 DD 105920A5 DD 173439 A DD173439 A DD 173439A DD 17343973 A DD17343973 A DD 17343973A DD 105920 A5 DD105920 A5 DD 105920A5
- Authority
- DD
- German Democratic Republic
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
- G11B5/70642—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 iron oxides
- G11B5/70678—Ferrites
-
- 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
- G11B5/70642—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 iron oxides
- G11B5/70678—Ferrites
- G11B5/70684—Ferro-ferrioxydes
-
- 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
- G11B5/70642—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 iron oxides
- G11B5/70678—Ferrites
- G11B5/70684—Ferro-ferrioxydes
- G11B5/70689—Magnetite
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7232367A FR2199155B1 (en:Method) | 1972-09-13 | 1972-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD105920A5 true DD105920A5 (en:Method) | 1974-05-12 |
Family
ID=9104193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD173439A DD105920A5 (en:Method) | 1972-09-13 | 1973-09-10 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5814047B2 (en:Method) |
| BE (1) | BE804829A (en:Method) |
| CH (1) | CH581075A5 (en:Method) |
| DD (1) | DD105920A5 (en:Method) |
| DE (1) | DE2343562C3 (en:Method) |
| FR (1) | FR2199155B1 (en:Method) |
| GB (1) | GB1436140A (en:Method) |
| IT (1) | IT995315B (en:Method) |
| NL (1) | NL7312614A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2801452C2 (de) * | 1978-01-13 | 1985-03-28 | Agfa-Gevaert Ag, 5090 Leverkusen | Magnetisches Aufzeichnungsmaterial |
| US4778719A (en) * | 1986-08-25 | 1988-10-18 | Eastman Kodak Company | Particulate magnetic recording media and method of manufacture thereof |
-
1972
- 1972-09-13 FR FR7232367A patent/FR2199155B1/fr not_active Expired
-
1973
- 1973-08-29 DE DE2343562A patent/DE2343562C3/de not_active Expired
- 1973-09-10 DD DD173439A patent/DD105920A5/xx unknown
- 1973-09-10 IT IT28749/73A patent/IT995315B/it active
- 1973-09-12 JP JP48102269A patent/JPS5814047B2/ja not_active Expired
- 1973-09-12 CH CH1309873A patent/CH581075A5/xx not_active IP Right Cessation
- 1973-09-12 GB GB4289873A patent/GB1436140A/en not_active Expired
- 1973-09-13 NL NL7312614A patent/NL7312614A/xx not_active Application Discontinuation
- 1973-09-13 BE BE135629A patent/BE804829A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2343562A1 (de) | 1974-03-28 |
| IT995315B (it) | 1975-11-10 |
| DE2343562B2 (de) | 1978-02-02 |
| DE2343562C3 (de) | 1978-09-28 |
| JPS4969104A (en:Method) | 1974-07-04 |
| GB1436140A (en) | 1976-05-19 |
| FR2199155A1 (en:Method) | 1974-04-05 |
| FR2199155B1 (en:Method) | 1978-04-28 |
| BE804829A (fr) | 1974-03-13 |
| JPS5814047B2 (ja) | 1983-03-17 |
| NL7312614A (en:Method) | 1974-03-15 |
| CH581075A5 (en:Method) | 1976-10-29 |