Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2008-06-03
2008-06-03
Chen, Tianjie (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07382590
ABSTRACT:
A magnetic head having a free layer and an antiparallel (AP) pinned layer structure spaced apart from the free layer. The AP pinned layer structure includes at least two pinned layers having magnetic moments that are self-pinned antiparallel to each other, the pinned layers being separated by an AP coupling layer constructed of a Ru alloy. The use of a Ru alloy coupling layer significantly increases the pinning field of the AP pinned layer structure over a pure Ru spacer.
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Doerner Mary Frances
Fullerton Eric Edward
Lee Wen-yaung
Li Jinshan
York Brian R.
Chen Tianjie
Hitachi Global Storage Technologies - Netherlands B.V.
Zilka-Kotab, PC
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