Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2004-11-05
2008-05-06
Castro, Angel (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07369360
ABSTRACT:
A method and apparatus having magnetic properties. The apparatus includes a main pole and a return pole spaced apart from the main pole. The return includes at least one multilayer block having a plurality of alternating layers of magnetic material and non-magnetic material. The return pole also includes a single magnetic material layer coupled to the at least one multilayer block. The magnetic material layer has a permeability that is greater than a permeability of the at least one multilayer block.
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Kief Mark T.
Shukh Alexander Mikhailovich
Singleton Eric W.
Vas'ko Vladyslav Alexandrovich
Castro Angel
Farrell Leanne Taveggia
Seagate Technology LLC
Westman Champlin & Kelly P.A.
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