Disk cartridge for engaging with a sensor member of a drive...

Dynamic optical information storage or retrieval – Optical storage medium structure – Disk cartridge

Reexamination Certificate

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Reexamination Certificate

active

06880167

ABSTRACT:
The present invention relates to a disk cartridge, which can be accurately positioned with respect to a drive device for accessing a disk medium. The disk cartridge provided with a case rotatably accommodating a disk medium therein, an arcuate side wall which is directed forward when the case is loaded into the drive device, and a shutter member formed on at least one surface of the case, for opening or closing an opening for access to the disk medium. An engaging portion is provided at a side wall to engage with a sensor member disposed in the drive device for accessing the disk medium so as to record or reproduce information thereon.

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