Piezoelectric reading of ferroelectric data storage media

Piezoelectric transducer for recording video information

Pillow/audio system combination

Ping-pong recording method and multi-track recorder apparatus

Pit pattern detecting apparatus and method

Pit spacing in the servo field of an optical disk for speed and

Pivotable restraining means for a disk operating apparatus

Pivotal-arm device for a disc scanning unit

Pivoting front cover for a drawer

Pivoting mailbox for optical storage libraries

Pivoting mirror device

Planar coil structure for magneto-optical head

Planar integrated micro-optical pickup head including two...

Plant gain calibration for an optical storage servo system

Plasmon shield to shape and reduce optical spot

Plastic clamp with hub and platter for use in disc drive

Plastic clamp with hub and platter for use in disc drive

Plastic hub containing a magnetic material and method of its man

Plastic substrate for optical disk and process for producing the

Plate member for attaching/detaching disk from disk chuck