JPS6435705A - Production of core for composite type magnetic head - Google Patents
Production of core for composite type magnetic headInfo
- Publication number
- JPS6435705A JPS6435705A JP19146187A JP19146187A JPS6435705A JP S6435705 A JPS6435705 A JP S6435705A JP 19146187 A JP19146187 A JP 19146187A JP 19146187 A JP19146187 A JP 19146187A JP S6435705 A JPS6435705 A JP S6435705A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- width control
- track width
- metallic materials
- gap
- 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 Heads (AREA)
Abstract
PURPOSE:To obtain a core for a magnetic head which exhibits excellent recording and reproducing characteristics even to a high-coercive force recording medium by embedding nonmagnetic materials into track width control grooves, then embedding prescribed magnetic metallic materials into track parts. CONSTITUTION:A 1st nonmagnetic material is packed into the butted and joined body of two ferrite blocks, by which a magnetic gap 6 having a prescribed spacing is formed. The 2nd nonmagnetic material 14 is embedded into the track width control grooves 10 formed in the direction orthogonal with the magnetic gap. Only the ferrite part near the gap 6 is removed and the magnetic metallic materials 26 is packed therein, following which medium traveling faces 16 are exposed by polishing, etc. Finally, the block is cut in the sections of the track width control grooves 10, by which the cores are obtd. The magnetic metallic materials are thereby made to exist only near the magnetic gap or in extremely small part of the medium traveling face and the loss of eddy current is decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19146187A JPH0622046B2 (en) | 1987-07-30 | 1987-07-30 | Manufacturing method of core for composite type magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19146187A JPH0622046B2 (en) | 1987-07-30 | 1987-07-30 | Manufacturing method of core for composite type magnetic head |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435705A true JPS6435705A (en) | 1989-02-06 |
JPH0622046B2 JPH0622046B2 (en) | 1994-03-23 |
Family
ID=16275027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19146187A Expired - Lifetime JPH0622046B2 (en) | 1987-07-30 | 1987-07-30 | Manufacturing method of core for composite type magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0622046B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0264904A (en) * | 1987-12-22 | 1990-03-05 | Nec Kansai Ltd | Manufacture of magnetic head |
US5387958A (en) * | 1992-06-30 | 1995-02-07 | Sony Electronics, Inc. | Electro-optical control of light attenuation in the optical path of a camera |
-
1987
- 1987-07-30 JP JP19146187A patent/JPH0622046B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0264904A (en) * | 1987-12-22 | 1990-03-05 | Nec Kansai Ltd | Manufacture of magnetic head |
US5387958A (en) * | 1992-06-30 | 1995-02-07 | Sony Electronics, Inc. | Electro-optical control of light attenuation in the optical path of a camera |
Also Published As
Publication number | Publication date |
---|---|
JPH0622046B2 (en) | 1994-03-23 |
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