Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1994-06-07
1995-11-21
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Head
Hall effect
360126, G11B 5127
Patent
active
054693179
ABSTRACT:
In a magnetoresistive head capable of performing favorable magnetic recording and reproduction, an overlap width of a front yoke and a magnetoresistive element is always wider than an overlap width of a back yoke and the magnetoresistive element. Generally, the magnetoresistive head varies in its reproduction efficiency by the overlap width of the yoke and magnetoresistive element. In particular, the reproduction output is significantly affected by the overlap width of the front yoke and magnetoresistive element, and when the overlap width of the front yoke becomes narrower than the overlap width of the back yoke, the reproduction output tends to decrease abruptly. Therefore, by keeping the overlap width of the front yoke always wider than the other, a stable reproduction output can be achieved. In particular, an outstanding effect is obtained in a multi-channel magnetoresistive head containing multiple magnetoresistive elements in one head.
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Fukazawa Toshio
Nagata Yuji
Tosaki Yoshihiro
Wada Kumiko
Evans Jefferson
Heinz A. J.
Matsushita Electric - Industrial Co., Ltd.
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