JPS5249806A - Substrate for magnetic discs - Google Patents
Substrate for magnetic discsInfo
- Publication number
- JPS5249806A JPS5249806A JP12526975A JP12526975A JPS5249806A JP S5249806 A JPS5249806 A JP S5249806A JP 12526975 A JP12526975 A JP 12526975A JP 12526975 A JP12526975 A JP 12526975A JP S5249806 A JPS5249806 A JP S5249806A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- magnetic discs
- magnetic disc
- aluminum
- core material
- 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
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: Aluminum of high purity is fixed to the core material for a magnetic disc, whereby sufficient mechanical stength of the magnetic disc and its satisfactory surface characteristics may be obtained simultaneously.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12526975A JPS5249806A (en) | 1975-10-20 | 1975-10-20 | Substrate for magnetic discs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12526975A JPS5249806A (en) | 1975-10-20 | 1975-10-20 | Substrate for magnetic discs |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5249806A true JPS5249806A (en) | 1977-04-21 |
Family
ID=14905890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12526975A Pending JPS5249806A (en) | 1975-10-20 | 1975-10-20 | Substrate for magnetic discs |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5249806A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57130232A (en) * | 1981-02-03 | 1982-08-12 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS59157255A (en) * | 1983-02-25 | 1984-09-06 | Nippon Light Metal Co Ltd | Aluminum alloy material for superprecision working to form specular surface |
-
1975
- 1975-10-20 JP JP12526975A patent/JPS5249806A/en active Pending
Non-Patent Citations (1)
Title |
---|
NATIONAL TECHNICAL REPORT=1975 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57130232A (en) * | 1981-02-03 | 1982-08-12 | Hitachi Maxell Ltd | Magnetic recording medium |
JPH0319609B2 (en) * | 1981-02-03 | 1991-03-15 | Hitachi Maxell | |
JPS59157255A (en) * | 1983-02-25 | 1984-09-06 | Nippon Light Metal Co Ltd | Aluminum alloy material for superprecision working to form specular surface |
JPS6232260B2 (en) * | 1983-02-25 | 1987-07-14 | Nippon Light Metal Co |
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