JPS52149104A - Preparation of magnetic disc with high recording density - Google Patents
Preparation of magnetic disc with high recording densityInfo
- Publication number
- JPS52149104A JPS52149104A JP6554576A JP6554576A JPS52149104A JP S52149104 A JPS52149104 A JP S52149104A JP 6554576 A JP6554576 A JP 6554576A JP 6554576 A JP6554576 A JP 6554576A JP S52149104 A JPS52149104 A JP S52149104A
- 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.)
- Pending
Links
Abstract
PURPOSE: To provide a magnetic disc having a high quality priming plated film by a method, which comprises electroplating a metal for priming on the surface of a substrate for magnetic disc provided with an obstructing board thereon and subjecting the swelled portions at internal or external circumfrential edges to electrolytic etching to be dissolved away, followed by mechanical polishing.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6554576A JPS52149104A (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 |
---|---|---|---|
JP6554576A JPS52149104A (en) | 1976-06-07 | 1976-06-07 | Preparation of magnetic disc with high recording density |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52149104A true JPS52149104A (en) | 1977-12-12 |
Family
ID=13290083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6554576A Pending JPS52149104A (en) | 1976-06-07 | 1976-06-07 | Preparation of magnetic disc with high recording density |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52149104A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60155700A (en) * | 1983-08-29 | 1985-08-15 | ダイナミツク、デイスク、インコ−ポレイテツド | Apparatus and method for adhering magnetic layer to substrate |
JP2009289299A (en) * | 2008-05-27 | 2009-12-10 | Fuji Electric Device Technology Co Ltd | Cleaning method of aluminum substrate for magnetic recording medium |
-
1976
- 1976-06-07 JP JP6554576A patent/JPS52149104A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60155700A (en) * | 1983-08-29 | 1985-08-15 | ダイナミツク、デイスク、インコ−ポレイテツド | Apparatus and method for adhering magnetic layer to substrate |
JP2009289299A (en) * | 2008-05-27 | 2009-12-10 | Fuji Electric Device Technology Co Ltd | Cleaning method of aluminum substrate for magnetic recording medium |
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