Magnetic head and method for manufacture thereof

Details Magnetic head and method for manufacture thereof Magnetic head and method for manufacture thereof

1996-04-22

1997-09-09

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Coil

G11B 517

Patent

active

056662491

ABSTRACT:
A magnetic head is disclosed in which a pair of magnetic core halves, each having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, are abutted to each other for defining a magnetic gap between the magnetic metal films, wherein a recess for forming a coil is formed in an abutting surface of at least one of the magnetic core halves and the coil formed by a thin film forming technique is arranged within the recess. A multi-channel magnetic head is also disclosed which includes a plurality of magnetic heads having different azimuth angles of the magnetic gaps, wherein each magnetic head is formed by abutting a pair of magnetic core halves to each other, each of the magnetic core halves having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, for defining a magnetic gap between the magnetic metal films, and wherein a recess for forming a coil is formed in the abutting surface of at least one of the magnetic core halves, and the coil is formed in the recess by thin film forming technique. The methods for producing the magnetic head and the multi-channel magnetic head are also disclosed.

REFERENCES:
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patent: 5047885 (1991-09-01), Zama et al.
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patent: 5157569 (1992-10-01), Kumasaka et al.
patent: 5173825 (1992-12-01), Suzuki et al.
Database WPI, Section EI, Week 8637, Derwent Publications Ltd., London, GB; 4 Sep. 1986.
Patent Abstracts of Japan, vol. 13, No. 35, "Magnetic Head", by Otomo Moichi, 26 Jan. 1989.
Patent Abstracts of Japan, vol. 10, No. 389, "Thin Film Magnetic Head", by Sato Kazuhiro, 26 Dec. 1986.
Patent Abstracts of Japan, vol. 11, No. 285, "Thin Film Magnetic Head", by Noboru Wakabayashi, 16 Sep. 1987.
Patent Abstracts of Japan, vol. 13, No. 27, "Thin Film Magnetic Head", by Kobayashi Tomio, 20 Jan. 1989.
Patent Abstracts of Japan, vol. 12, No. 147, "Magnetic Head", by Konuki Akio, 7 May 1988.

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