Masaharu Fukakusa

Optical pickup and optical disk apparatus

Optical integrating element and integration type optical pickup device using the same

Floating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a light source, condensing unit and photodetector and is supported movably relative to the floating slider

Loading method and drive unit for a floating magnetic head for loading the magnetic head while preventing contact between the magnetic head and a magnetic disk

Optical pickup apparatus and optical disk apparatus

Optical pick-up apparatus and optical disc unit therefor

Method of loading slider and magnetic disk apparatus

Bidirectional optical module and light transmitting apparatus

Optical pickup with a vertically movable aperture means

Optical pickup having a common light beam path for passing either of a plurality of kinds of light beams