Spring means for biasing a tape against a head inserted in a cas

Spring mechanism for lid of video cassette

Stabilized locating ring for a flexible disk

Static inhibiting bars for videotape cassette

Static reduction in magnetic record disk assemblies

Static reduction in magnetic recording cassettes

Storage apparatus having a recording medium with a thermal...

Storage cassette for a disc-shaped information carrier

Storage disk cartridge

Storage medium cartridge having an integral key

Stretched surface recording disk and method of manufacture

Stretched surface recording disk substrate

Stretched surface recording medium

Structurally rigid disk cartridge adaptable to eliminating relat

Structure for moving a shutter provided slidably on a disk cartr

Structure for moving disk cartridge shutter

Structure for preventing misinsertion of disc cartridges

Structure to provide optical and capacitive contrast on magnetic

Structures for fixedly supporting tape guides in a magnetic tape

Substrate and substrate holder