JPS6457408A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS6457408A JPS6457408A JP21273587A JP21273587A JPS6457408A JP S6457408 A JPS6457408 A JP S6457408A JP 21273587 A JP21273587 A JP 21273587A JP 21273587 A JP21273587 A JP 21273587A JP S6457408 A JPS6457408 A JP S6457408A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- superconductive
- head
- magnetic flux
- narrowing
- 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 execute the rapid improvement of a recording density by making a part or approximately all parts of the magnetic circuit of a magnetic head into a magnetic shield with a superconductive material and narrowing a head tip part in a pin hole or slit shape. CONSTITUTION:A main magnetic pole 10 of a single magnetic pole shape head for vertical recording and a superconductive coil 30 are shielded by a superconductive magnetic shield 40. Consequently, the magnetic flux leakage is prevented by a complete countermagnetic effect and by narrowing the magnetic path at a head tip part, the high centralization of the magnetic flux can be executed. At the tip of the superconductive magnetic shield 40 a pin hole or a slit-shaped hole is made, most of the magnetic flux excited by the superconductive coil 30 is centralized and injected from the clearance. Thus, the centralized and injected high density magnetic flux can centralize and penetrate to the ultra-micro area and a recording density can be rapidly improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21273587A JPS6457408A (en) | 1987-08-28 | 1987-08-28 | Magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21273587A JPS6457408A (en) | 1987-08-28 | 1987-08-28 | Magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6457408A true JPS6457408A (en) | 1989-03-03 |
Family
ID=16627565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21273587A Pending JPS6457408A (en) | 1987-08-28 | 1987-08-28 | Magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6457408A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0389222A2 (en) * | 1989-03-20 | 1990-09-26 | Hitachi, Ltd. | Magnetic head and magnetic recording apparatus |
JP2008168412A (en) * | 2007-01-15 | 2008-07-24 | Nippon Telegr & Teleph Corp <Ntt> | Screw fastening device and fastening method |
-
1987
- 1987-08-28 JP JP21273587A patent/JPS6457408A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0389222A2 (en) * | 1989-03-20 | 1990-09-26 | Hitachi, Ltd. | Magnetic head and magnetic recording apparatus |
EP0389222A3 (en) * | 1989-03-20 | 1992-03-04 | Hitachi, Ltd. | Magnetic head and magnetic recording apparatus |
JP2008168412A (en) * | 2007-01-15 | 2008-07-24 | Nippon Telegr & Teleph Corp <Ntt> | Screw fastening device and fastening method |
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