JPS509401B1 - - Google Patents
Info
- Publication number
- JPS509401B1 JPS509401B1 JP44083949A JP8394969A JPS509401B1 JP S509401 B1 JPS509401 B1 JP S509401B1 JP 44083949 A JP44083949 A JP 44083949A JP 8394969 A JP8394969 A JP 8394969A JP S509401 B1 JPS509401 B1 JP S509401B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
- 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
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681804393 DE1804393A1 (de) | 1968-10-22 | 1968-10-22 | Verfahren zur Herstellung von magnetischen Aufzeichnungstraegern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS509401B1 true JPS509401B1 (ja) | 1975-04-12 |
Family
ID=5711131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44083949A Pending JPS509401B1 (ja) | 1968-10-22 | 1969-10-22 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS509401B1 (ja) |
| BE (1) | BE740578A (ja) |
| DE (1) | DE1804393A1 (ja) |
| FR (1) | FR2021243A1 (ja) |
| GB (1) | GB1277822A (ja) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2254981A1 (de) * | 1972-11-10 | 1974-06-12 | Basf Ag | Verfahren zur herstellung von magnetplatten mit duennen magnetschichten |
| JPS5525406A (en) * | 1978-08-11 | 1980-02-23 | Hitachi Ltd | Preparation of coating composition for magnetic recording disc |
| JPS5923009B2 (ja) * | 1979-06-26 | 1984-05-30 | 日本ビクター株式会社 | 磁気記録媒体 |
| JPS5724027A (en) * | 1980-07-16 | 1982-02-08 | Tdk Corp | Magnetic recording medium |
| JPS5758227A (en) * | 1980-09-25 | 1982-04-07 | Tdk Corp | Magnetic recording medium |
| JPS57162127A (en) * | 1981-03-31 | 1982-10-05 | Fuji Photo Film Co Ltd | Magnetic recording body |
| JPS57183628A (en) * | 1981-05-07 | 1982-11-12 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| US4778714A (en) * | 1985-10-11 | 1988-10-18 | Minnesota Mining And Manufacturing Company | Nonabrasive magnetic recording tape |
| JP2826835B2 (ja) * | 1989-03-28 | 1998-11-18 | ティーディーケイ株式会社 | 磁気記録媒体 |
-
1968
- 1968-10-22 DE DE19681804393 patent/DE1804393A1/de active Pending
-
1969
- 1969-10-21 BE BE740578D patent/BE740578A/xx unknown
- 1969-10-21 GB GB5147069A patent/GB1277822A/en not_active Expired
- 1969-10-22 JP JP44083949A patent/JPS509401B1/ja active Pending
- 1969-10-22 FR FR6936181A patent/FR2021243A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE1804393A1 (de) | 1970-05-27 |
| FR2021243A1 (ja) | 1970-07-17 |
| GB1277822A (en) | 1972-06-14 |
| BE740578A (ja) | 1970-04-21 |