JPS641118A - Magnetic disk - Google Patents
Magnetic diskInfo
- Publication number
- JPS641118A JPS641118A JP15536187A JP15536187A JPS641118A JP S641118 A JPS641118 A JP S641118A JP 15536187 A JP15536187 A JP 15536187A JP 15536187 A JP15536187 A JP 15536187A JP S641118 A JPS641118 A JP S641118A
- Authority
- JP
- Japan
- Prior art keywords
- lubricity
- protective film
- film
- head
- magnetic disk
- 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 protect a magnetic layer as well as to provide excellent lubricity with a head to the titled disk and to improve the long-period reliability and yield thereof by forming the magnetic layer, the protective film in which particles of a material having high wear resistance are dispersed and a lubricating film having self-lubricity successively on a substrate.
CONSTITUTION: The protective film 6 made of, for example, an amorphous carbon film is formed on the magnetic layer 4 of a magnetic disk 1A. The particles 7 consisting of the material such as diamond having the high wear resistance are dispersed in this protective film 6. The resistance to the wear by the head is, therefore, improved. The lubricating film 8 which is made of the material such as amorphous carbon or graphite having the self-lubricity and has a smooth surface is formed on the protective film 6. The lubricity of the magnetic disk 1A is improved and the head parting at the time of rotation is simultaneously improved by this lubricating film 8.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-155361A JPH011118A (en) | 1987-06-24 | magnetic disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-155361A JPH011118A (en) | 1987-06-24 | magnetic disk |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS641118A true JPS641118A (en) | 1989-01-05 |
JPH011118A JPH011118A (en) | 1989-01-05 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5486276A (en) * | 1992-09-10 | 1996-01-23 | Fujitsu Limited | Method for manufacturing small magnetic disks from a large disk |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53143206A (en) * | 1977-05-18 | 1978-12-13 | Nec Corp | Magnetic disc |
JPS62109220A (en) * | 1985-11-07 | 1987-05-20 | Fujitsu Ltd | Magnetic recording medium |
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53143206A (en) * | 1977-05-18 | 1978-12-13 | Nec Corp | Magnetic disc |
JPS62109220A (en) * | 1985-11-07 | 1987-05-20 | Fujitsu Ltd | Magnetic recording medium |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5486276A (en) * | 1992-09-10 | 1996-01-23 | Fujitsu Limited | Method for manufacturing small magnetic disks from a large disk |
US5552203A (en) * | 1992-09-10 | 1996-09-03 | Fujitsu Limited | Magnetic disk having a protective layer of sputtered particles of two differently controlled grain sizes |
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