JPS6449121A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6449121A JPS6449121A JP20537487A JP20537487A JPS6449121A JP S6449121 A JPS6449121 A JP S6449121A JP 20537487 A JP20537487 A JP 20537487A JP 20537487 A JP20537487 A JP 20537487A JP S6449121 A JPS6449121 A JP S6449121A
- Authority
- JP
- Japan
- Prior art keywords
- added
- well
- ratio
- particles
- disulfide
- 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 sliding contact property with a head, etc., and to upgrade recording and reproducing characteristics, image quality, etc., by incorporating a prescribed ratio each of aluminum oxide particles and chromium oxide particles respectively having prescribed grain sizes into a magnetic layer. CONSTITUTION:Al2O3 particles having 0.1-0.5mum average grain size are added at 3-10pts.wt. ratio per 100pts.wt. solid content to the magnetic recording layer of a magnetic disk and further, Cr2O3 particles having 0.3-1.0mum average grain size are added at 0.5-5pts.wt. ratio thereto. Carbon black, silicone oil, graphite, Mo disulfide, W disulfide, monobasic fatty acid, etc., may be added as a lubricating agent thereto as well. An antistatic agent (for example, carbon black, graphite), etc., may be added thereto as well. Artificial corundum, fused alumina, silicon carbide, etc., may be added in addition to Al2O3 and Cr2O3 as a nonmagnetic polishing agent thereto as well.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20537487A JPS6449121A (en) | 1987-08-19 | 1987-08-19 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20537487A JPS6449121A (en) | 1987-08-19 | 1987-08-19 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6449121A true JPS6449121A (en) | 1989-02-23 |
Family
ID=16505778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20537487A Pending JPS6449121A (en) | 1987-08-19 | 1987-08-19 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6449121A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03203019A (en) * | 1989-12-28 | 1991-09-04 | Konica Corp | Discoid magnetic recording medium |
JPH0668453A (en) * | 1992-08-21 | 1994-03-11 | Fuji Photo Film Co Ltd | Flexible magnetic recording disk and its production |
-
1987
- 1987-08-19 JP JP20537487A patent/JPS6449121A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03203019A (en) * | 1989-12-28 | 1991-09-04 | Konica Corp | Discoid magnetic recording medium |
JPH0668453A (en) * | 1992-08-21 | 1994-03-11 | Fuji Photo Film Co Ltd | Flexible magnetic recording disk and its production |
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