JPS5687230A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5687230A JPS5687230A JP16379579A JP16379579A JPS5687230A JP S5687230 A JPS5687230 A JP S5687230A JP 16379579 A JP16379579 A JP 16379579A JP 16379579 A JP16379579 A JP 16379579A JP S5687230 A JPS5687230 A JP S5687230A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- copper
- forming
- recording medium
- base
- 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
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To prevent thermal deformation effectively and to improve magnetic characteristics by forming a substrate of copper on a base and then by forming a ferromagnetic metallic film on the substrate.
CONSTITUTION: On a base of a plastic film, nonmagnetic metallic film, etc., a substrate made of copper which can reflect radiant heat with extremely high reflectivity is vapor-deposited to a thickness of 100W2,000Å. To the substrate, a metallic simple substance such as cobalt, nickel and iron, their alloy or oxide, and a ferromagnetic material such as Co-P and Co-Ni-P are bonded by vapor deposition, ion plating, sputtering, plating, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16379579A JPS5687230A (en) | 1979-12-17 | 1979-12-17 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16379579A JPS5687230A (en) | 1979-12-17 | 1979-12-17 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5687230A true JPS5687230A (en) | 1981-07-15 |
Family
ID=15780839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16379579A Pending JPS5687230A (en) | 1979-12-17 | 1979-12-17 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687230A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002319120A (en) * | 2001-04-24 | 2002-10-31 | Toray Ind Inc | Substrate for magnetic recording medium |
-
1979
- 1979-12-17 JP JP16379579A patent/JPS5687230A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002319120A (en) * | 2001-04-24 | 2002-10-31 | Toray Ind Inc | Substrate for magnetic recording medium |
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