Optical magnetic information recording and reproducing apparatus

Optical magnetic memory device utilizing non-recorded portions o

Optical magnetic recording and reproducing method and apparatus

Optical magnetic recording and reproducing system

Optical magnetic recording medium and optical magnetic reproduci

Optical memories, method for reading and writing such...

Optical memory device for recording, reproducing or erasing info

Optical method and device for irradiating domains at predetermin

Optical modulation overwritable magnetooptical recording medium

Optical near-field second surface recording

Optical output adjusting apparatus based on shortest...

Optical output adjusting apparatus based on shortest...

Optical path for a thermal-assisted magnetic recording head

Optical pick-up for scanning a magneto-optically recorded medium

Optical pick-up for selective playback and recording on a magnet

Optical pickup apparatus and magneto-optical reproducing system

Optical pickup apparatus for detecting and correcting focusing a

Optical pickup device for magneto-optical disc reproducing syste

Optical pickup for optical magnetic disc

Optical pickup using split beams impinging on different photo-de