Shinji Kubota

Optical disk device and method for setting recording power and erasing power

Semiconductor laser control circuit

Method and apparatus for timing variable optical information recording

Optical disc, optical disc device, and method for recording an optical disc

Optical disk apparatus with an erase checking function

Opticaldis recording and/or reproducing device and wethod for setting recording and clear powers

Optical disk recording and/or reproducing apparatus and method for setting recording power and eliminating power

Optical disk system, record power and clear power set method

An optical disk apparatus for and method of recording on an optical disk

Optische Platte, Gerät dafür, und Verfahren zur Aufzeichnung auf eine optische Platte An optical disk apparatus therefor, and method for recording on an optical disk