Inventor · disambiguated record
Hiroshi Kumai
Also filed as: KUMAI HIROSHI
32 granted patents·5 pending applications·466 citations·filing 1987–2018
97Inventor score
Top patents by PatentIndex Score
37 records- 0193US4818070ALiquid crystal optical device using U.V.-cured polymer dispersions and process for its productionASAHI GLASS CO LTD·Filed 1988·Granted Apr 4, 1989·109 cites·29 claims
- 0292US7371438B2Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic materialASAHI GLASS CO LTD·Filed 2006·Granted May 13, 2008·17 cites·10 claims
- 0391US9268072B2Optical filter, solid-state imaging element, imaging device lens and imaging deviceASAHI GLASS CO LTD·Filed 2013·Granted Feb 23, 2016·9 cites·24 claims
- 0489US7820250B2Liquid crystal optical modulation element and optical head deviceASAHI GLASS CO LTD·Filed 2008·Granted Oct 26, 2010·6 cites·22 claims
- 0588US5235445ALiquid crystal optical element with liquid crystal in polymer matrix with particular modulus of elasticityAG TECHNOLOGY CORP·Filed 1992·Granted Aug 10, 1993·83 cites·20 claims
- 0687US9664830B2Optical filter and solid-state imaging deviceASAHI GLASS CO LTD·Filed 2013·Granted May 30, 2017·5 cites·12 claims
- 0787US7846515B2Liquid crystal optical modulation element and optical head deviceASAHI GLASS CO LTD·Filed 2010·Granted Dec 7, 2010·6 cites·14 claims
- 0886US7714977B2Liquid crystal optical modulation element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted May 11, 2010·10 cites·9 claims
- 0986US4834509ALiquid crystal optical device and process for its production and method for its operationASAHI GLASS CO LTD·Filed 1987·Granted May 30, 1989·71 cites·16 claims
- 1085US7081281B2Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic materialASAHI GLASS CO LTD·Filed 2006·Granted Jul 25, 2006·12 cites·10 claims
- 1184US7442418B2Polymerizable liquid crystal compound, liquid crystal composition, optical anisotropic material and optical elementASAHI GLASS CO LTD·Filed 2006·Granted Oct 28, 2008·12 cites·13 claims
- 1280US8565058B2Liquid crystal alignment film, process for its production, optical element using the liquid crystal alignment film, and optical information writing/reading deviceASAHI GLASS CO LTD·Filed 2012·Granted Oct 22, 2013·2 cites·13 claims
- 1375US10345498B2Infrared cut filter, solid-state imaging device, and imaging/display apparatusAGC INC·Filed 2015·Granted Jul 9, 2019·2 cites·8 claims
- 1471US5331446ALiquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystalAG TECHNOLOGY CORP·Filed 1993·Granted Jul 19, 1994·37 cites·23 claims
- 1570US10088730B2Optical element and imaging deviceASAHI GLASS CO LTD·Filed 2017·Granted Oct 2, 2018·1 cites·13 claims
- 1669US5103327AActive matrix liquid crystal display element and a projection type active matrix liquid crystal display apparatusASAHI GLASS CO LTD·Filed 1991·Granted Apr 7, 1992·28 cites·20 claims
- 1768US10746908B2Optical filter and imaging deviceAGC INC·Filed 2017·Granted Aug 18, 2020·1 cites·24 claims
- 1867US8092711B2Liquid crystal compound, polymerizable liquid crystal composition, optically anisotropic material, optical element and optical information writing/reading deviceOKADA SATOSHI·Filed 2010·Granted Jan 10, 2012·1 cites·8 claims
- 1966US7901591B2Bifunctional polymerizable compound, liquid crystal composition, optical anisotropic material and optical elementASAHI GLASS CO LTD·Filed 2009·Granted Mar 8, 2011·2 cites·16 claims
- 2061US5858268ALiquid crystal optical element, a liquid crystal display element and a projection type liquid crystal display apparatusAG TECHNOLOGY CORP·Filed 1996·Granted Jan 12, 1999·18 cites·12 claims
- 2159US8007682B2Compound, liquid crystal composition, optical anisotropic material and optical deviceASAHI GLASS CO LTD·Filed 2008·Granted Aug 30, 2011·1 cites·12 claims
- 2259US8007877B2Liquid crystal optical modulation element and optical head deviceASAHI GLASS CO LTD·Filed 2010·Granted Aug 30, 2011·0 cites·22 claims
- 2353US5776364ALiquid crystal optical element, a method for producing the same and a projection type liquid crystal display apparatusAG TECHNOLOGY CORP·Filed 1996·Granted Jul 7, 1998·12 cites·14 claims
- 2449US11028106B2Method for producing tetraalkoxysilaneAIST·Filed 2018·Granted Jun 8, 2021·0 cites·19 claims
- 2548US5162934AMethod of manufacturing liquid crystal display elementASAHI GLASS CO LTD·Filed 1992·Granted Nov 10, 1992·14 cites·20 claims
- 2647US2019049809A1Electrochromic elementAGC INC·Filed 2018·Application pending·0 cites
- 2746US9753196B2Optical filter, solid-state imaging element, imaging device lens and imaging deviceASAHI GLASS CO LTD·Filed 2016·Granted Sep 5, 2017·0 cites·42 claims
- 2846US8632882B2Dialkoxymagnesium granules and method for their synthesisYAMANAKA AKIHIKO·Filed 2007·Granted Jan 21, 2014·2 cites·2 claims
- 2944US8488432B2Polymer compound, composition for alignment film, alignment film, optical element, and optical information writing/reading deviceOKADA SATOSHI·Filed 2012·Granted Jul 16, 2013·0 cites·12 claims
- 3042US8420854B2Di(meth)acrylate compound, polymerizable liquid crystal composition, optical anisotropic material, optical element and optical information writing/reading deviceOKADA SATOSHI·Filed 2012·Granted Apr 16, 2013·0 cites·17 claims
- 3140US8039064B2Compound, polymerizable liquid crystal composition, optical element and optical information writing/reading deviceASAHI GLASS CO LTD·Filed 2010·Granted Oct 18, 2011·0 cites·8 claims
- 3240US2012075539A1Projection display deviceKONISHI TEPPEI·Filed 2011·Application pending·0 cites
- 3339US2012147279A1Projection display apparatusKOYANAGI ATSUSHI·Filed 2011·Application pending·0 cites
- 3438US8293134B2Optically anisotropic material, optical element and optical information writing/reading deviceOKADA SATOSHI·Filed 2010·Granted Oct 23, 2012·0 cites·12 claims
- 3532US2016011348A1Infrared cut filterASAHI GLASS CO LTD·Filed 2015·Application pending·0 cites
- 3629US5318724AAntistatic coating compositionCOLCOAT CO LTD·Filed 1993·Granted Jun 7, 1994·5 cites·4 claims
- 3729US2012322958A1Mixed magnesum dialkoxide particulate, method for synthesizing same, and method for use thereofYAMANAKA AKIHIKO·Filed 2011·Application pending·0 cites
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