Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1997-05-20
1998-12-29
Letscher, George J.
Dynamic magnetic information storage or retrieval
Head
Plural gaps
G11B 529
Patent
active
058547266
ABSTRACT:
A magnetic head device for data cartridge including a recording head having a recording magnetic gap and a reproducing head having a reproducing magnetic gap united in one body is disclosed. The magnetic head device for data cartridge includes a first magnetic head element having a first magnetic gap, the first magnetic head element having center cores on both lateral sides thereof, second and third magnetic gaps formed by magnetic cores forming closed magnetic circuits in the center cores, the magnetic cores being bonded to each other via a gap member, the first to third magnetic gaps being arrayed in a magnetic recording medium rubbing direction, the magnetic cores forming the second and third magnetic gaps having inclined gap forming faces, the gap forming faces of the magnetic gaps extending in a depth direction in a manner non-parallel to one another, one of the first to third magnetic gaps being used as a recording magnetic gap, the recording magnetic gap having a magnetic metal film formed on the gap forming face thereof. The magnetic metal film is formed directly on the magnetic core without providing an underlying film.
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Honda Koji
Kubota Shoetsu
Letscher George J.
Sony Corporation
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