JPS55122232A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS55122232A JPS55122232A JP2567479A JP2567479A JPS55122232A JP S55122232 A JPS55122232 A JP S55122232A JP 2567479 A JP2567479 A JP 2567479A JP 2567479 A JP2567479 A JP 2567479A JP S55122232 A JPS55122232 A JP S55122232A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- sputtering
- recording medium
- magnetic recording
- recording
- 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 reduce film thickness dependency of a magnetic characteristic to obtain a high-recording density medium for vertical magnetization recording, by providing a two layer-structure recording layer, where a ferrormagnetic Co-Cr layer is formed by sputtering with a nonmagnetic Co-Cr layer as the ground layer, on the substance.
CONSTITUTION: A nonmagnetic Co-Cr layer including Cr of 25 atom % or more is fomed by sputtering on a substance (for example, a polyimide film of a film thickness of approximately 25μ), and next, a ferromagnetic Co-Cr layer is formed on this layer by sputtering, thus obtaining a magnetic recording medium.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2567479A JPS55122232A (en) | 1979-03-07 | 1979-03-07 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2567479A JPS55122232A (en) | 1979-03-07 | 1979-03-07 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55122232A true JPS55122232A (en) | 1980-09-19 |
Family
ID=12172319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2567479A Pending JPS55122232A (en) | 1979-03-07 | 1979-03-07 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55122232A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58121134A (en) * | 1982-01-12 | 1983-07-19 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
US4657824A (en) * | 1985-10-28 | 1987-04-14 | International Business Machines Corporation | Vertical magnetic recording medium with an intermetallic compound nucleating layer |
JPH02289923A (en) * | 1990-04-20 | 1990-11-29 | Seiko Epson Corp | Production of magnetic recording medium |
-
1979
- 1979-03-07 JP JP2567479A patent/JPS55122232A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58121134A (en) * | 1982-01-12 | 1983-07-19 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
JPH0411923B2 (en) * | 1982-01-12 | 1992-03-03 | Matsushita Electric Ind Co Ltd | |
US4657824A (en) * | 1985-10-28 | 1987-04-14 | International Business Machines Corporation | Vertical magnetic recording medium with an intermetallic compound nucleating layer |
JPH02289923A (en) * | 1990-04-20 | 1990-11-29 | Seiko Epson Corp | Production of magnetic recording medium |
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