FR2188229B3 - - Google Patents
Info
- Publication number
- FR2188229B3 FR2188229B3 FR7321428A FR7321428A FR2188229B3 FR 2188229 B3 FR2188229 B3 FR 2188229B3 FR 7321428 A FR7321428 A FR 7321428A FR 7321428 A FR7321428 A FR 7321428A FR 2188229 B3 FR2188229 B3 FR 2188229B3
- 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
- G11B5/62—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
- G11B5/708—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 addition of non-magnetic particles to the layer
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722228643 DE2228643A1 (de) | 1972-06-13 | 1972-06-13 | Kartenfoermige magnetogrammtraeger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2188229A1 FR2188229A1 (it) | 1974-01-18 |
| FR2188229B3 true FR2188229B3 (it) | 1976-05-28 |
Family
ID=5847578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7321428A Expired FR2188229B3 (it) | 1972-06-13 | 1973-06-13 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2228643A1 (it) |
| FR (1) | FR2188229B3 (it) |
| GB (1) | GB1427963A (it) |
| IT (1) | IT985687B (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5554822Y2 (it) * | 1975-09-19 | 1980-12-18 | ||
| JPS61915A (ja) * | 1984-06-13 | 1986-01-06 | Konishiroku Photo Ind Co Ltd | 磁気記録媒体 |
-
1972
- 1972-06-13 DE DE19722228643 patent/DE2228643A1/de active Pending
-
1973
- 1973-06-12 GB GB2780273A patent/GB1427963A/en not_active Expired
- 1973-06-13 FR FR7321428A patent/FR2188229B3/fr not_active Expired
- 1973-06-13 IT IT5078273A patent/IT985687B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1427963A (en) | 1976-03-10 |
| DE2228643A1 (de) | 1974-01-10 |
| IT985687B (it) | 1974-12-10 |
| FR2188229A1 (it) | 1974-01-18 |