Inventor
YAMAMOTO REI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO REI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CHEMICAL CO LTD
12 patentsUS7840108B2Nov 23, 2010
Light branching optical waveguide
HITACHI CHEMICAL CO LTD18 citations83
US7496254B2Feb 24, 2009
Curved optical waveguide and optical device
HITACHI CHEMICAL CO LTD6 citations73
US7457498B2Nov 25, 2008
Optical waveguide structure
HITACHI CHEMICAL CO LTD8 citations73
US7664353B2Feb 16, 2010
Optical waveguide structure including at least first, second and third waveguides and coupling waveguide
HITACHI CHEMICAL CO LTD2 citations62
US7577328B2Aug 18, 2009
Optical reflector, optical system and optical multiplexer/demultiplexer device
HITACHI CHEMICAL CO LTD4 citations62
US7574081B2Aug 11, 2009
Optical system with optical waveguides
HITACHI CHEMICAL CO LTD7 citations62
US7546014B2Jun 9, 2009
Optical directional coupler
HITACHI CHEMICAL CO LTD5 citations62
US7444050B2Oct 28, 2008
S-shaped curved optical waveguide and optical device
HITACHI CHEMICAL CO LTD5 citations62
US7748910B2Jul 6, 2010
Optical system and method of manufacturing the same
HITACHI CHEMICAL CO LTD1 citations51
US7450803B2Nov 11, 2008
Optical waveguide
HITACHI CHEMICAL CO LTD1 citations51
US7639904B2Dec 29, 2009
Optical device
HITACHI CHEMICAL CO LTD0 citations50
US7817889B2Oct 19, 2010
Optical waveguide structure, optical-waveguide-type optical module and optical fiber array
HITACHI CHEMICAL CO LTD0 citations40