Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2007-12-28
2011-10-04
Watko, Julie Anne (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
C360S125080
Reexamination Certificate
active
08031434
ABSTRACT:
A magnetic write head for perpendicular magnetic recording. The write head has a secondary flare point defined by magnetic structures that extend from the sides of the write pole, but not over the trailing edge of the write pole. The magnetic structures each have a front edge that defines the secondary flare point. By constructing the magnetic structures so that they only extend from the sides of the write pole and not over the write pole, they can be formed by electroplating, while leafing the mask structure (used to define the write pole) still intact, thereby greatly simplifying manufacture and preventing damage to the write pole during manufacture.
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Le Quang
Lille Jeffrey S.
Pentek Aron
Hitachi Global Storage Technologies - Netherlands B.V.
Watko Julie Anne
Zilka-Kotab, PC
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