Immobilizer for a data storage disk in a cartridge using an over

Improved disk cartridge including a shutter for opening and clos

Improvements in plate springs for tape cassettes in particular v

Increased capacity VCR tape cassette

Indicia display and audio storage cassette

Information carrier disk housing having incorrect insertion prev

Information field integrally formed by diskette housing to...

Information recording disk provided with distinguishing mark

Information recording medium and recording/reproducing...

Information recording medium cartridge

Information recording medium cartridge

Information recording medium with concave/convex servo...

Information recording medium, recording/reproducing...

Information storage and retrieval system including a tape cartri

Information storage cartridge containing desiccant material

Information storage device using movement of magnetic domain...

Information storage disc assembly

Information storage disc having a curved disc surface

Information storage disk cartridge

Information storage medium and apparatus adopting the same