JPS647320A - Magnetic disk - Google Patents
Magnetic diskInfo
- Publication number
- JPS647320A JPS647320A JP16133487A JP16133487A JPS647320A JP S647320 A JPS647320 A JP S647320A JP 16133487 A JP16133487 A JP 16133487A JP 16133487 A JP16133487 A JP 16133487A JP S647320 A JPS647320 A JP S647320A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- coated film
- coated
- substrate
- electrical defects
- 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 decrease the electrical defects of a multi-layered magnetic disk by using a coating compd. contg. a photosetting resin to form the coated film on a substrate side of two layers of the coated films on a nonmagnetic substrate. CONSTITUTION:The coated film on the side near the substrate of the magnetic disk having two layers of the coated films, one of which contains the coated film formed by dispersing ferromagnetic powder into a high-polymer binder, on the nonmagnetic substrate contains the thermosetting resin and is cured by radiations in a short period of time. There is, therefore, no need for carrying of the disk, etc., into a furnace for the purpose of curing and the adhesion of dust, etc., onto the film surface is prevented. The 2nd layer of the coated film is thus laminated and formed without having the electrical defects. The multi-layered magnetic disk with which the electrical defects are suppressed is thereby obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16133487A JPS647320A (en) | 1987-06-30 | 1987-06-30 | Magnetic disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16133487A JPS647320A (en) | 1987-06-30 | 1987-06-30 | Magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647320A true JPS647320A (en) | 1989-01-11 |
Family
ID=15733108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16133487A Pending JPS647320A (en) | 1987-06-30 | 1987-06-30 | Magnetic disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647320A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8026460B2 (en) | 2007-07-20 | 2011-09-27 | Nihon Dempa Kogyo Co., Ltd. | Control circuit for thermostatic oven in oven controlled crystal oscillator |
-
1987
- 1987-06-30 JP JP16133487A patent/JPS647320A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8026460B2 (en) | 2007-07-20 | 2011-09-27 | Nihon Dempa Kogyo Co., Ltd. | Control circuit for thermostatic oven in oven controlled crystal oscillator |
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