JPS5247799A - Process for producing a magnetic sheet - Google Patents
Process for producing a magnetic sheetInfo
- Publication number
- JPS5247799A JPS5247799A JP50123699A JP12369975A JPS5247799A JP S5247799 A JPS5247799 A JP S5247799A JP 50123699 A JP50123699 A JP 50123699A JP 12369975 A JP12369975 A JP 12369975A JP S5247799 A JPS5247799 A JP S5247799A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic sheet
- producing
- punch
- damaging
- punching
- 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)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve the efficiency of a cutting work and stabilize the precision and rotary floating property of a self-floating type magnetic sheet without damaging the quality of the magnetic surface thereof by punching the surface of a diamagnetic layer opposite to t he pressing surface of a punch.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50123699A JPS5824847B2 (en) | 1975-10-14 | 1975-10-14 | Jikishi Tonoseizohouhou |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50123699A JPS5824847B2 (en) | 1975-10-14 | 1975-10-14 | Jikishi Tonoseizohouhou |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5247799A true JPS5247799A (en) | 1977-04-15 |
JPS5824847B2 JPS5824847B2 (en) | 1983-05-24 |
Family
ID=14867139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50123699A Expired JPS5824847B2 (en) | 1975-10-14 | 1975-10-14 | Jikishi Tonoseizohouhou |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5824847B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0327417A (en) * | 1989-06-23 | 1991-02-05 | Toshiba Corp | Personal computer |
-
1975
- 1975-10-14 JP JP50123699A patent/JPS5824847B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5824847B2 (en) | 1983-05-24 |
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