FR2206548B1 - - Google Patents
Info
- Publication number
- FR2206548B1 FR2206548B1 FR7339706A FR7339706A FR2206548B1 FR 2206548 B1 FR2206548 B1 FR 2206548B1 FR 7339706 A FR7339706 A FR 7339706A FR 7339706 A FR7339706 A FR 7339706A FR 2206548 B1 FR2206548 B1 FR 2206548B1
- 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
-
- 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
- G11B5/7085—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 non-magnetic abrasive particles
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722254981 DE2254981A1 (de) | 1972-11-10 | 1972-11-10 | Verfahren zur herstellung von magnetplatten mit duennen magnetschichten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2206548A1 FR2206548A1 (US06262066-20010717-C00315.png) | 1974-06-07 |
| FR2206548B1 true FR2206548B1 (US06262066-20010717-C00315.png) | 1979-02-23 |
Family
ID=5861309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7339706A Expired FR2206548B1 (US06262066-20010717-C00315.png) | 1972-11-10 | 1973-11-08 |
Country Status (7)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067682A (en) * | 1975-08-01 | 1978-01-10 | Nichols Engineering & Research Corporation | Oil burner system |
| JPS5260308U (US06262066-20010717-C00315.png) * | 1975-10-28 | 1977-05-02 | ||
| JPS5613525A (en) * | 1979-07-16 | 1981-02-09 | Tdk Corp | Magnetic recording medium |
| JPS5724027A (en) * | 1980-07-16 | 1982-02-08 | Tdk Corp | Magnetic recording medium |
| DE3407721A1 (de) * | 1984-03-02 | 1985-09-12 | Basf Ag, 6700 Ludwigshafen | Magnetische aufzeichnungstraeger |
| FR2638000B1 (fr) * | 1988-10-18 | 1990-12-14 | Kodak Pathe | Carte a memoire magnetique a grande capacite et procede de fabrication |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1804393A1 (de) * | 1968-10-22 | 1970-05-27 | Basf Ag | Verfahren zur Herstellung von magnetischen Aufzeichnungstraegern |
| CH506155A (de) * | 1969-04-14 | 1971-04-15 | Ibm | Magnetische Datenspeichervorrichtung |
-
1972
- 1972-11-10 DE DE19722254981 patent/DE2254981A1/de active Pending
-
1973
- 1973-11-06 NL NL7315209A patent/NL7315209A/xx not_active Application Discontinuation
- 1973-11-08 FR FR7339706A patent/FR2206548B1/fr not_active Expired
- 1973-11-09 IT IT5360873A patent/IT996425B/it active
- 1973-11-09 BE BE137560A patent/BE807105A/xx unknown
- 1973-11-09 GB GB5206373A patent/GB1448593A/en not_active Expired
- 1973-11-09 JP JP12556873A patent/JPS50803A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7315209A (US06262066-20010717-C00315.png) | 1974-05-14 |
| FR2206548A1 (US06262066-20010717-C00315.png) | 1974-06-07 |
| DE2254981A1 (de) | 1974-06-12 |
| BE807105A (fr) | 1974-05-09 |
| GB1448593A (en) | 1976-09-08 |
| JPS50803A (US06262066-20010717-C00315.png) | 1975-01-07 |
| IT996425B (it) | 1975-12-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |