Dynamic optical information storage or retrieval – Optical storage medium structure – Disk hub
Reexamination Certificate
2003-07-02
2008-11-25
Cao, Allen T (Department: 2627)
Dynamic optical information storage or retrieval
Optical storage medium structure
Disk hub
Reexamination Certificate
active
07458088
ABSTRACT:
An intermediate for an optical recording medium, according to the present invention, is an intermediate produced beforehand for manufacturing an optical recording medium that has a central mounting hole formed in a central portion thereof and one or more kinds of functional layers formed on a surface thereof, for enabling at least one of information recording and information reproduction. The intermediate has a provisional central hole, which is smaller in diameter than the central mounting hole, formed in a central portion thereof. This makes it possible to drop resin in the vicinity of the center of the intermediate without using a disk-shaped member, in performing spin coating on the intermediate, whereby it is possible to make the layer of applied resin substantially uniform in thickness.
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English language Abstract of JP 2001-167472.
English language Abstract of JP2000-331377.
Ide Junichi
Koyama Atsushi
Usami Mamoru
Ushida Tomoki
Yamaga Kenji
Cao Allen T
Greenblum & Bernstein P.L.C.
TDK Corporation
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