BE709254A - - Google Patents
Info
- Publication number
- BE709254A BE709254A BE709254DA BE709254A BE 709254 A BE709254 A BE 709254A BE 709254D A BE709254D A BE 709254DA BE 709254 A BE709254 A BE 709254A
- Authority
- BE
- Belgium
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
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
- G11B5/7356—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
- G11B5/7358—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2 specially adapted for achieving a specific property, e.g. average roughness [Ra]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR92918A FR1531397A (fr) | 1967-01-30 | 1967-01-30 | Nouvelles bandes pour enregistrement magnétique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE709254A true BE709254A (xx) | 1968-05-16 |
Family
ID=8624525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE709254D BE709254A (xx) | 1967-01-30 | 1968-01-11 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE709254A (xx) |
| FR (1) | FR1531397A (xx) |
| GB (1) | GB1197661A (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437482B2 (xx) * | 1972-11-20 | 1979-11-15 | ||
| JPS5813444Y2 (ja) * | 1977-01-20 | 1983-03-16 | 日立マクセル株式会社 | 磁気記録テ−プ |
| DE3325556A1 (de) * | 1983-07-15 | 1985-01-24 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von magnetischen aufzeichnungstraegern mit rueckschicht |
| DE3405960A1 (de) * | 1984-02-18 | 1985-08-22 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von magnetischen aufzeichnungstraegern mit rueckschicht sowie danach hergestellte magnetische aufzeichnungstraeger |
| JPS6122424A (ja) * | 1984-07-09 | 1986-01-31 | Hitachi Maxell Ltd | 磁気記録媒体 |
| DE4117980A1 (de) * | 1991-05-31 | 1992-12-03 | Basf Magnetics Gmbh | Flexible magnetische aufzeichnungstraeger mit rueckschicht |
| DE4216847A1 (de) * | 1992-05-21 | 1993-11-25 | Basf Magnetics Gmbh | Flexible magnetische Aufzeichnungsträger mit Rückschicht |
| DE4238174A1 (de) * | 1992-11-12 | 1994-05-19 | Basf Magnetics Gmbh | Flexible magnetische Aufzeichnungsträger mit Rückschicht |
-
1967
- 1967-01-30 FR FR92918A patent/FR1531397A/fr not_active Expired
-
1968
- 1968-01-11 BE BE709254D patent/BE709254A/xx unknown
- 1968-01-30 GB GB4782/68A patent/GB1197661A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1197661A (en) | 1970-07-08 |
| FR1531397A (fr) | 1968-07-05 |