Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1984-12-31
1987-03-31
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Hall effect
G11B 522
Patent
active
046547398
ABSTRACT:
A thin film magnetic head for reproducing perpendicular magnetization comprising an operative surface disposed to face a recording medium, a thin film magnetization detection portion including a magneto-resistive element perpendicular to the operative surface of the head with one side edge of the magnetization detection portion being exposed to the operative surface, ferromagnetic material with one end thereof being magnetically coupled to the side edge portion of the thin film magnetization detection portion most distant from said operative surface and with the other end thereof being exposed to the operative surface, and a non-magnetic material disposed in an area defined by the thin film magnetization detection portion, the ferromagnetic material and the operative surface, wherein the distance between the thin film magnetization detection portion and the ferromagnetic material at said operative surface is at least five times the distance between the end of the ferromagnetic material magnetically coupled to the side edge portions of the thin film magnetization detection portion and the operative surface.
Kanai Kenji
Sasaki Seishi
Takahashi Ken
Youda Hiroshi
Matsushita Electric - Industrial Co., Ltd.
Tupper Robert S.
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