Polarizing beam splitter using dielectric multilayers
Positioning system for the heads of a magneto-optical data recor
Power calibration method and apparatus for optical disc
Power control of TAMR element during read/write transition
Preheating bulk erasing device for magneto-optical disk
Process for direct over-writing of digital data recorded on magn
Process for reading-out information from electrically polarizabl
Pulse train condition/heat shut off condition determination meth