Etching a substrate: processes – Forming or treating article containing magnetically...
Reexamination Certificate
2007-12-11
2007-12-11
Ahmed, Shamim (Department: 1765)
Etching a substrate: processes
Forming or treating article containing magnetically...
C216S041000, C430S312000, C430S322000, C428S064200, C029S603010, C029S603030
Reexamination Certificate
active
11493807
ABSTRACT:
A recording medium includes a substrate, and a recording layer formed on the substrate having (a) a recording track band, and (b) recording cells regularly arrayed in the recording track band to form a plurality rows of sub-tracks. The recording cells included in each sub-track are formed apart from each other at a pitch P in the track direction. Nearest neighboring two recording cells, each positioned on adjacent two sub-tracks in the track band, are formed apart from each other at a pitch P
in the track direction, where 2≦n≦5.
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Asakawa Koji
Hieda Hiroyuki
Hiraoka Toshiro
Naito Katsuyuki
Sakurai Masatoshi
Ahmed Shamim
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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