Inventor
NAKAGAWA RYOTARO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA RYOTARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUNAI ELECTRIC CO
8 patentsUS7778130B2Aug 17, 2010
Optical disc apparatus
FUNAI ELECTRIC CO2 citations61
US7668048B2Feb 23, 2010
Optical head and optical disc device provided therewith
FUNAI ELECTRIC CO4 citations60
US7274633B2Sep 25, 2007
Optical pickup
FUNAI ELECTRIC CO4 citations60
US7254097B2Aug 7, 2007
Optical disc apparatus
FUNAI ELECTRIC CO3 citations60
US6762891B2Jul 13, 2004
Optical pickup device
FUNAI ELECTRIC CO3 citations60
US7065008B2Jun 20, 2006
Objective lens unit
FUNAI ELECTRIC CO1 citations50
US7680016B2Mar 16, 2010
Method for designing an optical pickup
FUNAI ELECTRIC CO0 citations40
US7397733B2Jul 8, 2008
Optical pickup
FUNAI ELECTRIC CO0 citations39