JPS5668924A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5668924A JPS5668924A JP14470879A JP14470879A JPS5668924A JP S5668924 A JPS5668924 A JP S5668924A JP 14470879 A JP14470879 A JP 14470879A JP 14470879 A JP14470879 A JP 14470879A JP S5668924 A JPS5668924 A JP S5668924A
- Authority
- JP
- Japan
- Prior art keywords
- silicate
- vapor deposition
- recording medium
- plating
- magnetic 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.)
- Granted
Links
Landscapes
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
PURPOSE: To obtain a ferromagnetic metal thin film type magnetic recording medium which is nearly free of curl and has the excellent properties of contacting and running on a magnetic head, by using a specific substrate layer.
CONSTITUTION: The substrate of plastics, a nonmagnetic metal film or the like is applied with a solution of silicate such as sodium silicate, potassium silicate, and barium, sodium or mixture of silicate and a small amount of SbO2, V2O3, Sr2O3, etc. Instead of applying the solution, it is bonded by vapor deposition, ion plating, sputtering, metal plating, etc., and on the coating, a ferromagnetic metal thin-film layer is provided by a means of vapor deposition, ion plating, sputtering, metal plating, etc. Consequently, thermal radiation, etc., from the vapor deposition source of the ferromagnetic substance can be prevented to reduce the thermal change of the base, so that its curl can be prevented effectively.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14470879A JPS5668924A (en) | 1979-11-07 | 1979-11-07 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14470879A JPS5668924A (en) | 1979-11-07 | 1979-11-07 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5668924A true JPS5668924A (en) | 1981-06-09 |
JPS6242336B2 JPS6242336B2 (en) | 1987-09-08 |
Family
ID=15368434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14470879A Granted JPS5668924A (en) | 1979-11-07 | 1979-11-07 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5668924A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59162621A (en) * | 1983-03-08 | 1984-09-13 | Nippon Kogaku Kk <Nikon> | Magnetic recording medium having plastic substrate |
-
1979
- 1979-11-07 JP JP14470879A patent/JPS5668924A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59162621A (en) * | 1983-03-08 | 1984-09-13 | Nippon Kogaku Kk <Nikon> | Magnetic recording medium having plastic substrate |
Also Published As
Publication number | Publication date |
---|---|
JPS6242336B2 (en) | 1987-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5225603A (en) | Magnetic tape | |
JPS54121719A (en) | Magnetic recording medium | |
JPS5668924A (en) | Magnetic recording medium | |
JPS5342009A (en) | Preparation of magnetic recording medium | |
JPS53144705A (en) | Production of magnetic recording media | |
JPS5634143A (en) | Magnetic recording medium | |
JPS57138035A (en) | Magnetic recording medium | |
JPS51131303A (en) | Magnetic recording medium | |
JPS5388704A (en) | Magnetic recording medium | |
JPS5251909A (en) | Production of magnetic film | |
JPS57147130A (en) | Magnetic recording medium | |
JPS52112306A (en) | Magnetic recording tape | |
JPS53116498A (en) | Garnet for magnetic babble | |
JPS537206A (en) | Magnetic recording medium | |
JPS541602A (en) | Magnetic film coating method of magnetic discs | |
JPS5634150A (en) | Manufacture of magnetic recording medium | |
JPS55146455A (en) | Light recording medium | |
JPS57113409A (en) | Thin-film head | |
JPS52148101A (en) | Preparation of magnetic recording media | |
JPS5374005A (en) | Manufacture of magnetic recording medium | |
JPS52135704A (en) | Substrate for magnetic recording medium and preparation thereof | |
JPS5421471A (en) | Polyester film | |
JPS55150134A (en) | Magnetic disk | |
JPS5373108A (en) | Magnetic recording medium | |
JPS57169915A (en) | Magnetic recorder and reproducer |