Inventor
NAKAGAWA YOUHEI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA YOUHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO ELECTRIC CO
12 patentsUS7181121B2Feb 20, 2007
Optical device and method for manufacturing the same
SANYO ELECTRIC CO10 citations84
US7474476B2Jan 6, 2009
Optical lens, compound lens and method for producing the same, as well as cemented lens and method for producing the same
SANYO ELECTRIC CO17 citations83
US7916405B2Mar 29, 2011
Imaging lens unit, imaging device, and portable terminal
SANYO ELECTRIC CO11 citations80
US7521725B2Apr 21, 2009
Optical waveguide and the method of fabricating the same
SANYO ELECTRIC CO2 citations63
US7483616B2Jan 27, 2009
Optical waveguide
SANYO ELECTRIC CO2 citations63
US7396873B2Jul 8, 2008
Organometallic polymer material and process for preparing the same
SANYO ELECTRIC CO3 citations63
US7901784B2Mar 8, 2011
Optical waveguide, optical transmitter and receiver module, and laminated structure
SANYO ELECTRIC CO2 citations62
US7561774B2Jul 14, 2009
Optical waveguide
SANYO ELECTRIC CO2 citations62
US7054070B2May 30, 2006
Gradient-index lens and composite optical element utilizing the same
SANYO ELECTRIC CO5 citations62
US7599120B2Oct 6, 2009
Composite lens, manufacturing method for composite lens, and lens module
SANYO ELECTRIC CO2 citations61
US7558008B2Jul 7, 2009
Photographing lens unit including plurality of lenses and imaging apparatus with the same
SANYO ELECTRIC CO6 citations61
US8000040B2Aug 16, 2011
Imaging lens, manufacturing method thereof, and compound lens
SANYO ELECTRIC CO1 citations49