Dynamic magnetic information storage or retrieval – Record medium – Disk
Reexamination Certificate
2006-06-08
2010-06-15
Blouin, Mark (Department: 2627)
Dynamic magnetic information storage or retrieval
Record medium
Disk
Reexamination Certificate
active
07738213
ABSTRACT:
A magnetic disc medium according to an aspect of the present invention includes: a preamble part in a servo area of each of sectors obtained by dividing a surface of the medium in a circumference direction, the preamble part including strip-shaped patterns formed of a plurality of magnetic materials, and each of the strip-shaped patterns formed of the magnetic materials being divided by non-magnetic materials at periodic intervals.
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Morita Seiji
Okino Takeshi
Sakurai Masatoshi
Sugimura Shinobu
Blouin Mark
Kabushiki Kaisha Toshiba
Nixon & Vanderhye PC
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