Inventor
YAMAGUCHI YOSHIMOTO
JP5 patents
Patents
5 patentsUS5477527ADec 19, 1995
High density optical disc and optical disc player
SANYO ELECTRIC CO52 citations95
US5896367AApr 20, 1999
High density optical disc and optical disc player
SANYO ELECTRIC CO16 citations81
US5838657ANov 17, 1998
High density optical disc and optical disc player
SANYO ELECTRIC CO9 citations73
US5689495ANov 18, 1997
High density optical disc and optical disc player
SANYO ELECTRIC CO9 citations73
US6009072ADec 28, 1999
High density optical disc player
SANYO ELECTRIC CO5 citations62