Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Optical storage medium support
Reexamination Certificate
2005-10-04
2005-10-04
Klimowicz, William J (Department: 2652)
Dynamic optical information storage or retrieval
Dynamic mechanism optical subsystem
Optical storage medium support
C720S706000, C720S713000, C720S715000
Reexamination Certificate
active
06952834
ABSTRACT:
A disc chucking device is provided which holds a disc-shaped recording medium on a disc table and rotates it along with the disc table. It includes a disc table whose rotation-center line is laid generally orthogonally to the vertical direction and onto which a disc-shaped recording medium is set with the main side thereof being parallel to the vertical direction, a centering block formed on the disc table and which is to be fitted in a central hole in the disc-shaped recording medium, a motor to rotate the disc table, a clamper to pinch along with the disc table the disc-shaped recording medium put on the disc table, and a fall-off preventive structure provided on the disc table for engagement with the disc-shaped recording medium at the central hole formed in the latter.
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Inatani Akihisa
Koyama Kumi
Mizuno Hajime
Klimowicz William J
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
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