Inventor
KUMAI HIROSHI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “KUMAI HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI GLASS CO LTD
19 patentsUS4818070AApr 4, 1989
Liquid crystal optical device using U.V.-cured polymer dispersions and process for its production
ASAHI GLASS CO LTD109 citations95
US4834509AMay 30, 1989
Liquid crystal optical device and process for its production and method for its operation
ASAHI GLASS CO LTD71 citations93
US5103327AApr 7, 1992
Active matrix liquid crystal display element and a projection type active matrix liquid crystal display apparatus
ASAHI GLASS CO LTD28 citations92
US7442418B2Oct 28, 2008
Polymerizable liquid crystal compound, liquid crystal composition, optical anisotropic material and optical element
ASAHI GLASS CO LTD12 citations83
US7371438B2May 13, 2008
Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic material
ASAHI GLASS CO LTD17 citations83
US7081281B2Jul 25, 2006
Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic material
ASAHI GLASS CO LTD12 citations83
US9268072B2Feb 23, 2016
Optical filter, solid-state imaging element, imaging device lens and imaging device
ASAHI GLASS CO LTD9 citations82
US7714977B2May 11, 2010
Liquid crystal optical modulation element and optical head device
ASAHI GLASS CO LTD10 citations80
US5162934ANov 10, 1992
Method of manufacturing liquid crystal display element
ASAHI GLASS CO LTD14 citations74
US9664830B2May 30, 2017
Optical filter and solid-state imaging device
ASAHI GLASS CO LTD5 citations72
US7846515B2Dec 7, 2010
Liquid crystal optical modulation element and optical head device
ASAHI GLASS CO LTD6 citations72
US7820250B2Oct 26, 2010
Liquid crystal optical modulation element and optical head device
ASAHI GLASS CO LTD6 citations72
US8565058B2Oct 22, 2013
Liquid crystal alignment film, process for its production, optical element using the liquid crystal alignment film, and optical information writing/reading device
ASAHI GLASS CO LTD2 citations62
US7901591B2Mar 8, 2011
Bifunctional polymerizable compound, liquid crystal composition, optical anisotropic material and optical element
ASAHI GLASS CO LTD2 citations62
US8007877B2Aug 30, 2011
Liquid crystal optical modulation element and optical head device
ASAHI GLASS CO LTD0 citations51
US10088730B2Oct 2, 2018
Optical element and imaging device
ASAHI GLASS CO LTD1 citations50
US9753196B2Sep 5, 2017
Optical filter, solid-state imaging element, imaging device lens and imaging device
ASAHI GLASS CO LTD0 citations50
US8007682B2Aug 30, 2011
Compound, liquid crystal composition, optical anisotropic material and optical device
ASAHI GLASS CO LTD1 citations49
US8039064B2Oct 18, 2011
Compound, polymerizable liquid crystal composition, optical element and optical information writing/reading device
ASAHI GLASS CO LTD0 citations39
AG TECHNOLOGY CORP
4 patentsUS5235445AAug 10, 1993
Liquid crystal optical element with liquid crystal in polymer matrix with particular modulus of elasticity
AG TECHNOLOGY CORP83 citations96
US5331446AJul 19, 1994
Liquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystal
AG TECHNOLOGY CORP37 citations92
US5858268AJan 12, 1999
Liquid crystal optical element, a liquid crystal display element and a projection type liquid crystal display apparatus
AG TECHNOLOGY CORP18 citations84
US5776364AJul 7, 1998
Liquid crystal optical element, a method for producing the same and a projection type liquid crystal display apparatus
AG TECHNOLOGY CORP12 citations74
OKADA SATOSHI
4 patentsUS8092711B2Jan 10, 2012
Liquid crystal compound, polymerizable liquid crystal composition, optically anisotropic material, optical element and optical information writing/reading device
OKADA SATOSHI1 citations52
US8488432B2Jul 16, 2013
Polymer compound, composition for alignment film, alignment film, optical element, and optical information writing/reading device
OKADA SATOSHI0 citations41
US8420854B2Apr 16, 2013
Di(meth)acrylate compound, polymerizable liquid crystal composition, optical anisotropic material, optical element and optical information writing/reading device
OKADA SATOSHI0 citations41
US8293134B2Oct 23, 2012
Optically anisotropic material, optical element and optical information writing/reading device
OKADA SATOSHI0 citations34