JPS644919A - Magnetic recording carrier - Google Patents
Magnetic recording carrierInfo
- Publication number
- JPS644919A JPS644919A JP16166987A JP16166987A JPS644919A JP S644919 A JPS644919 A JP S644919A JP 16166987 A JP16166987 A JP 16166987A JP 16166987 A JP16166987 A JP 16166987A JP S644919 A JPS644919 A JP S644919A
- Authority
- JP
- Japan
- Prior art keywords
- film
- alloy
- protective film
- head
- contg
- 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 the attraction of a head even if rotation is stopped and the head is brought into contact with a protective film by depositing a magnetic film of a recording medium and the protective film to protect this magnetic film on a substrate and forming the protective film of a thin alloy film contg. a wear resistant material. CONSTITUTION:An Ni-P alloy is plated on the surface of the disk-shaped substrate 1 consisting of an aluminum alloy and an underlying film 2 having usually 15-20mum thickness is formed thereon. A Co-Ni-P alloy is plated thereon and the magnetic film 3 having 0.01-0.1mum thickness is deposited thereon. The thin alloy film of Ni-W-P contg. silicon carbide which is the wear resistant material is further deposited as the protective film 14 thereon. Since the protective film 14 is the thin alloy film contg. the wear resistant material in such a manner, the attraction of the head is obviated even if the magnetic recording carrier stops rotating to bring the head into contact therewith.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16166987A JPS644919A (en) | 1987-06-29 | 1987-06-29 | Magnetic recording carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16166987A JPS644919A (en) | 1987-06-29 | 1987-06-29 | Magnetic recording carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644919A true JPS644919A (en) | 1989-01-10 |
Family
ID=15739588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16166987A Pending JPS644919A (en) | 1987-06-29 | 1987-06-29 | Magnetic recording carrier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644919A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999043219A1 (en) * | 1998-02-27 | 1999-09-02 | Nippon Shinyaku Co., Ltd. | Ginkgo leaf extract compositions and foods containing the same |
-
1987
- 1987-06-29 JP JP16166987A patent/JPS644919A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999043219A1 (en) * | 1998-02-27 | 1999-09-02 | Nippon Shinyaku Co., Ltd. | Ginkgo leaf extract compositions and foods containing the same |
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