Masatoshi Okamura

Tape reel for tape cassette

Tape cartridge with matched brake lock and brake release plate

Structures for fixedly supporting tape guides in a magnetic tape cassette

Magnetic tape cassette having improved reel locking means

Disk cartridge with error insertion prevention mechanism

Tapping boss of magnetic tape cassette

Tape cassette with low friction slide member for guiding movement of a lid thereon

Tape cartridge with a cell for a leader hook member and a cell for a leader

Tape cassette housing

Medium related members