JPS5411704A - Production of magnetic discs - Google Patents
Production of magnetic discsInfo
- Publication number
- JPS5411704A JPS5411704A JP7617177A JP7617177A JPS5411704A JP S5411704 A JPS5411704 A JP S5411704A JP 7617177 A JP7617177 A JP 7617177A JP 7617177 A JP7617177 A JP 7617177A JP S5411704 A JPS5411704 A JP S5411704A
- Authority
- JP
- Japan
- Prior art keywords
- production
- magnetic discs
- disc
- magnetic
- magnetic field
- 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 improve recording and reproducing characteristics by applying a magnetic field which is a magnetic flux perpendicular to a disc and has a gradient to the disc from its below thereafter applying an in-plane gradient magnetic field for recording to magnetic layer.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7617177A JPS5411704A (en) | 1977-06-28 | 1977-06-28 | Production of magnetic discs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7617177A JPS5411704A (en) | 1977-06-28 | 1977-06-28 | Production of magnetic discs |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5411704A true JPS5411704A (en) | 1979-01-29 |
JPS5712209B2 JPS5712209B2 (en) | 1982-03-09 |
Family
ID=13597632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7617177A Granted JPS5411704A (en) | 1977-06-28 | 1977-06-28 | Production of magnetic discs |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5411704A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812138A (en) * | 1981-07-13 | 1983-01-24 | Toshiba Corp | Production of magnetic recording medium |
JPS60125932A (en) * | 1983-12-12 | 1985-07-05 | Berumateitsuku:Kk | Production of anisotropic floppy disk |
US4578280A (en) * | 1983-03-08 | 1986-03-25 | Agfa-Gevaert Aktiengesellschaft | Process for the production of a magnetic recording material with perpendicular orientation |
US4696831A (en) * | 1985-02-14 | 1987-09-29 | Hitachi, Ltd. | Method of orienting magnetic disc by magnetic field |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5045603A (en) * | 1973-08-25 | 1975-04-23 | ||
JPS531508A (en) * | 1976-06-28 | 1978-01-09 | Nec Corp | Preparation of magnetic recording medium and device therefor |
-
1977
- 1977-06-28 JP JP7617177A patent/JPS5411704A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5045603A (en) * | 1973-08-25 | 1975-04-23 | ||
JPS531508A (en) * | 1976-06-28 | 1978-01-09 | Nec Corp | Preparation of magnetic recording medium and device therefor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812138A (en) * | 1981-07-13 | 1983-01-24 | Toshiba Corp | Production of magnetic recording medium |
US4578280A (en) * | 1983-03-08 | 1986-03-25 | Agfa-Gevaert Aktiengesellschaft | Process for the production of a magnetic recording material with perpendicular orientation |
JPS60125932A (en) * | 1983-12-12 | 1985-07-05 | Berumateitsuku:Kk | Production of anisotropic floppy disk |
US4696831A (en) * | 1985-02-14 | 1987-09-29 | Hitachi, Ltd. | Method of orienting magnetic disc by magnetic field |
Also Published As
Publication number | Publication date |
---|---|
JPS5712209B2 (en) | 1982-03-09 |
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