Stock material or miscellaneous articles – All metal or with adjacent metals – Having magnetic properties – or preformed fiber orientation...
Reexamination Certificate
2005-05-17
2005-05-17
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
All metal or with adjacent metals
Having magnetic properties, or preformed fiber orientation...
C428S637000, C428S678000, C428S686000, C428S156000, C428S336000, C428S692100, C360S324110, C360S324120
Reexamination Certificate
active
06893734
ABSTRACT:
A magnetic sensing element includes a laminate, the laminate including a first antiferromagnetic layer; a pinned magnetic layer, the magnetization direction thereof being pinned by the first antiferromagnetic layer; a nonmagnetic conductive layer; a free magnetic layer, the magnetization direction thereof being variable in response to an external magnetic field; a nonmagnetic interlayer; a ferromagnetic layer; and a second antiferromagnetic layer. The laminate has a recess extending through the second antiferromagnetic layer and the ferromagnetic layer, a bottom face of the recess lying in the nonmagnetic interlayer, the width of the bottom face in a track width direction being equal to a track width. The free magnetic layer is magnetized in a direction substantially orthogonal to the magnetization direction of the pinned magnetic layer as a result of magnetic coupling with the ferromagnetic layer. A method for making such a magnetic sensing element is also disclosed.
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English Translation of JP 11-175919-A (Arai et al.).*
JPO Abstract Translation of JP 11-175919.
Hasegawa Naoya
Ide Yosuke
Saito Masamichi
Tanaka Ken'ichi
Umetsu Eiji
Alps Electric Co. ,Ltd.
Bernatz Kevin M.
Brinks Hofer Gilson & Lione
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