G - Physics
11
B
352/32.4
G11B 23/03 (2006.01) G11B 23/28 (2006.01)
Patent
CA 1328015
ABSTRACT OF THE DISCLOSURE A disk cartridge having a disk cartridge-body in which a disk-shaped record medium is rotatably accommodated and an information signal can be recorded in the disk-shaped record medium, the disk cartridge-body having an opening portion to exchange therethrough the disk-shaped record medium, an openable and closable member for opening and closing the opening portion through which the disk-shaped record medium is exchanged and a write-protecting mechanism formed on the openable and closable member to determine whether or not an information signal can be recorded in the disk-shaped record medium.
592576
Gowling Lafleur Henderson Llp
Sony Corporation
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