Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2006-04-06
2010-10-26
Castro, Angel A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07821736
ABSTRACT:
Write elements are discussed having a write pole and an associated trailing shield. A leading side of the trailing shield faces a trailing side of the write pole. The leading side of the trailing shield has a shape such that a center portion of the leading side has less of a separation from the trailing side of the write pole than track edge portions of the leading side of the trailing shield. An exemplary shape the leading side of the trailing shield may be a convex shape when viewed from the ABS. The shape of the leading side of the trailing shield causes the trailing shield to shunt less of the magnetic field from the trailing side of the write pole at the track edges so that the written transition at the track edge will not lag behind the written transition at the track center allowing for a straighter transition.
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Che Xiaodong
Hsiao Wen-Chien
Hsu Yimin
Nikitin Vladimir
Castro Angel A.
Duft Bornsen & Fishman LLP
Hitachi Global Storage Technologies - Netherlands B.V.
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