Inventor
KUWAHARA MAHO
JP9 patents
Patents
9 patentsUS6459670B1Oct 1, 2002
Optical information recording method and optical information recording device
TOSHIBA KK33 citations92
US6937544B2Aug 30, 2005
Optical disk unit for recording or reproducing information
TOSHIBA KK17 citations91
US6504800B1Jan 7, 2003
Optical disk and optical apparatus
TOSHIBA KK23 citations91
US7224653B2May 29, 2007
Optical disk unit capable of restraining changes in light quantity
TOSHIBA KK3 citations61
US6925046B2Aug 2, 2005
Optical head device and optical disk unit capable of stable signal reproduction
TOSHIBA KK5 citations61
US6781928B2Aug 24, 2004
Optical head and optical disk apparatus
TOSHIBA KK3 citations61
US7274630B2Sep 25, 2007
Layer discriminating focus control apparatus, optical disk apparatus, and methods therefore
TOSHIBA KK1 citations51
US10516407B2Dec 24, 2019
Signal processing device
TOSHIBA KK0 citations50
US7759978B2Jul 20, 2010
Current driver circuit
TOSHIBA KK0 citations30