Etching a substrate: processes – Forming or treating article containing magnetically...
Reexamination Certificate
2006-10-27
2009-10-27
Olsen, Allan (Department: 1792)
Etching a substrate: processes
Forming or treating article containing magnetically...
C216S052000
Reexamination Certificate
active
07608193
ABSTRACT:
A method of forming a discrete track recording pattern on a soft magnetic underlayer of a perpendicular magnetic recording disk. In one embodiment, the soft magnetic underlayer is continuous throughout the discrete track recording pattern.
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Bajorek Christopher H.
Bertero Gerardo A.
Chao James L.
Homola Andrew
Treves David
Blakely , Sokoloff, Taylor & Zafman LLP
Olsen Allan
WD Media, Inc.
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