Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-03-14
2010-12-07
Blouin, Mark (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07848061
ABSTRACT:
A current perpendicular to plane (CPP) magnetoresistive sensor having a free layer that is magnetically coupled with a magnetic shield, thereby providing the free layer with a large effective flux guide. Sensor performance is improved by virtually eliminating demagnetization fields at the back edge of the sensor. The free layer can be magnetically connected with the shield by a magnetic coupling layer or shunt structure that is disposed between the free layer and the shield behind the capping layer.
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Jayasekara Wipul
Nikitin Vladimir
Blouin Mark
Hitachi Global Storage Technologies - Netherlands B.V.
Zilka-Kotab, PC
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