JPS52149105A - Preparation of magnetic disc with high recording density - Google Patents
Preparation of magnetic disc with high recording densityInfo
- Publication number
- JPS52149105A JPS52149105A JP6554776A JP6554776A JPS52149105A JP S52149105 A JPS52149105 A JP S52149105A JP 6554776 A JP6554776 A JP 6554776A JP 6554776 A JP6554776 A JP 6554776A JP S52149105 A JPS52149105 A JP S52149105A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disc
- preparation
- recording density
- high recording
- priming
- 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
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To provide a disc covered on its entire surface with priming plated film in a uniform thickness, thereby making mechanical polishing easier at low cost, by using in combination a perforated obstructing plate and a supplemental cathode with substrate for magnetic disc at the time of priming plating.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6554776A JPS52149105A (en) | 1976-06-07 | 1976-06-07 | Preparation of magnetic disc with high recording density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6554776A JPS52149105A (en) | 1976-06-07 | 1976-06-07 | Preparation of magnetic disc with high recording density |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52149105A true JPS52149105A (en) | 1977-12-12 |
JPS5543174B2 JPS5543174B2 (en) | 1980-11-05 |
Family
ID=13290138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6554776A Granted JPS52149105A (en) | 1976-06-07 | 1976-06-07 | Preparation of magnetic disc with high recording density |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52149105A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60187700A (en) * | 1984-03-07 | 1985-09-25 | Fujitsu Ltd | Power source system for plating |
JPS62139900A (en) * | 1985-12-13 | 1987-06-23 | Mitsuboshi Belting Ltd | Electrolytic plating device |
JP2020002394A (en) * | 2018-06-25 | 2020-01-09 | 株式会社ニコン | Manufacturing method of aluminum coating film, manufacturing method of alumite coating film, resin member with aluminum coating film, and resin member with alumite coating film |
-
1976
- 1976-06-07 JP JP6554776A patent/JPS52149105A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60187700A (en) * | 1984-03-07 | 1985-09-25 | Fujitsu Ltd | Power source system for plating |
JPS62139900A (en) * | 1985-12-13 | 1987-06-23 | Mitsuboshi Belting Ltd | Electrolytic plating device |
JP2020002394A (en) * | 2018-06-25 | 2020-01-09 | 株式会社ニコン | Manufacturing method of aluminum coating film, manufacturing method of alumite coating film, resin member with aluminum coating film, and resin member with alumite coating film |
Also Published As
Publication number | Publication date |
---|---|
JPS5543174B2 (en) | 1980-11-05 |
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