Inventor
ITOH SAYAKO
JP2 patents
Patents
2 patentsUS7948858B2May 24, 2011
Optical information processing apparatus, optical pick-up device and optical recording disc system
HITACHI MEDIA ELECTRON KK4 citations59
US7502303B2Mar 10, 2009
Optical information processing apparatus, optical pick-up device and optical recording disc system
HITACHI MEDIA ELECTRON KK3 citations59