Dynamic magnetic information storage or retrieval – Head – Core
Patent
1993-07-21
1996-01-02
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Core
G11B 5127
Patent
active
054814227
ABSTRACT:
A magnetic head comprising first and second core halves made of an oxide magnetic material and arranged to be abutted against each other to have a winding channel and to define at least one magnetic gap therebetween and joined by a bonding glass. On each of the surfaces of the first and second core halves which respectively face said magnetic gap, there is provided a metallic magnetic film made of a metallic magnetic material including nitrogen. Further, a protective film is provided on each of the metallic magnetic films. The protective film is made of a nitride material such as CrN, VN, Si3N4, BN, TaN, AlN, TiN and ZrN. The protective films prevent the nitrogen of the metallic magnetic films from discharging into the bonding glass.
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Ishibashi Kazuhiro
Okayama Hiroshi
Matsushita Electric - Industrial Co., Ltd.
Miller Brian E.
Tupper Robert S.
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