Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2006-08-08
2006-08-08
Cao, Allen (Department: 2652)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07088550
ABSTRACT:
A magnetic head for reading information from and writing information to a hard magnetic disk having reduced thermal protrusion at the air bearing surface. In some embodiments, a read-head portion of the magnetic head includes one or more read insulation layers, and a write-head portion of the magnetic head includes one or more write insulation layers. The magnetic head may optionally further include one or more insulation layers between the read-head portion and the write-head portion. One or more of these insulation layers includes a material with a negative thermal expansion characteristic, including but not limited to, carbon fiber, zirconium tungstate (Zr W2O8), or hafnium tungstate (Hf W2O8).
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Gider Savas
Hsiao Wen-Chien (David)
Cao Allen
Guillot Robert O.
Hitachi Global Storage Technologies - Netherlands B.V.
Intellectual Property Law Offices
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