JPS5613517A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5613517A JPS5613517A JP8925379A JP8925379A JPS5613517A JP S5613517 A JPS5613517 A JP S5613517A JP 8925379 A JP8925379 A JP 8925379A JP 8925379 A JP8925379 A JP 8925379A JP S5613517 A JPS5613517 A JP S5613517A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- base material
- nonmagnetic
- recording medium
- material layer
- Prior art date
- 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
Abstract
PURPOSE: To improve the bonding property and wear resistance of a magnetic layer by forming on a supporter a nonmagnetic polymer layer that has partial surface projections and then by providing the metal magnetic layer while exposing the base material nonmagnetic layer partially.
CONSTITUTION: On supporter 1, base material layer 2 of an inorganic polymer layer is formed which contains nonmagnetic and wear-resisting powder such as Al2O3 of ≥about 6 in Mohs' hardness and ≤ about 3μ in mean grain size. This is processed by a heat calendar roll, etc., chased with a pattern to form projections of not less than the thickness of a magnetic film to be formed next. On this base material layer 2, metal magnetic layer 3 of Co, Ni, etc., are provided by plating to a thickness of about 0.05W2μ. Next, surface work is carried out to expose base material layer 2 partially on the surface. Consequently, a magnetic recording medium superior in wear resistance and running property can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8925379A JPS5613517A (en) | 1979-07-16 | 1979-07-16 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8925379A JPS5613517A (en) | 1979-07-16 | 1979-07-16 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5613517A true JPS5613517A (en) | 1981-02-09 |
Family
ID=13965588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8925379A Pending JPS5613517A (en) | 1979-07-16 | 1979-07-16 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5613517A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5868227A (en) * | 1981-10-15 | 1983-04-23 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPS58100221A (en) * | 1981-12-09 | 1983-06-14 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPS5930231A (en) * | 1982-08-12 | 1984-02-17 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPS5992427A (en) * | 1982-11-18 | 1984-05-28 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1979
- 1979-07-16 JP JP8925379A patent/JPS5613517A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5868227A (en) * | 1981-10-15 | 1983-04-23 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPH0547887B2 (en) * | 1981-10-15 | 1993-07-20 | Matsushita Electric Ind Co Ltd | |
JPS58100221A (en) * | 1981-12-09 | 1983-06-14 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPH0547888B2 (en) * | 1981-12-09 | 1993-07-20 | Matsushita Electric Ind Co Ltd | |
JPS5930231A (en) * | 1982-08-12 | 1984-02-17 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPH0328731B2 (en) * | 1982-08-12 | 1991-04-22 | Matsushita Electric Ind Co Ltd | |
JPS5992427A (en) * | 1982-11-18 | 1984-05-28 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPH0326453B2 (en) * | 1982-11-18 | 1991-04-10 | Matsushita Electric Ind Co Ltd |
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