Stock material or miscellaneous articles – Magnetic recording component or stock – Magnetic head
Reexamination Certificate
2006-04-18
2006-04-18
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Magnetic head
C428S812000, C428S813000, C428S816000, C360S324110
Reexamination Certificate
active
07029771
ABSTRACT:
An intermediate region is formed at a central portion of an element in a track width direction, and an antiferromagnetic layer is not provided at the intermediate region. Accordingly, a sense current can be prevented from being shunted to the intermediate region, and as a result, improvement in reproduction output and strength against magnetic electrostatic damage can be realized. In addition, since the thickness of the central portion of the element is decreased, trend toward narrower gap can be realized. Furthermore, since the direction of magnetization of a free magnetic layer is oriented in the track width direction by shape anisotropy, means for orienting the magnetization is not necessary, and hence the structure and manufacturing method of the element can be simplified.
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Pending claims of co-assigned application 10/675,435.
Hasegawa Naoya
Ide Yosuke
Saito Masamichi
Umetsu Eiji
Alps Electric Co. ,Ltd.
Bernatz Kevin M.
Brinks Hofer Gilson & Lione
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