Michihiro Tadokoro

Information-carrying medium equipment for magneto-optic reading and writing

Wavelength selective optical recording and reproducing method

Magneto-optic information-carrying medium including three magnetic layers

Optical head for an optical recording and reproducing apparatus

Optical recording and reproducing apparatus having a pickup head including a main prism with reflecting surfaces for splitting the reflected beam

Focus detecting apparatus utilizing reflecting surface having variable reflectivity or transmissivity

Optical head including a collimator having lenses of different focal lengths

Magneto-optic information-carrying medium

Optical head for optical information recording/reproducing apparatus

Optical recording and/or reproducing apparatus having a temperature adjusting device