Inventor · disambiguated record
Yoshiharu Ooi
Also filed as: OOI YOSHIHARU
42 granted patents·5 pending applications·1,215 citations·filing 1985–2020
98Inventor score
Top patents by PatentIndex Score
47 records- 0196US5587816ALCD device including an illumination device having a polarized light separating sheet between a light guide and the displayASAHI GLASS CO LTD·Filed 1995·Granted Dec 24, 1996·242 cites·18 claims
- 0293US7773489B2Liquid crystal lens element and optical head deviceASAHI GLASS CO LTD·Filed 2007·Granted Aug 10, 2010·21 cites·15 claims
- 0393US6580674B1Phase shifter and optical head device mounted with the sameASAHI GLASS CO LTD·Filed 2000·Granted Jun 17, 2003·60 cites·8 claims
- 0492US7738344B2Liquid crystal lens element optical head deviceASAHI GLASS CO LTD·Filed 2007·Granted Jun 15, 2010·24 cites·6 claims
- 0590US10683233B2Light selective transmission type glass and laminated substrateAGC INC·Filed 2017·Granted Jun 16, 2020·4 cites·15 claims
- 0689US5754260AProjection type color liquid crystal optical apparatusAG TECHNOLOGY CORP·Filed 1997·Granted May 19, 1998·116 cites·20 claims
- 0789US5648860AProjection type color liquid crystal optical apparatusAG TECHNOLOGY CORP·Filed 1994·Granted Jul 15, 1997·96 cites·13 claims
- 0888US10228500B2Optical filter and imaging deviceAGC INC·Filed 2017·Granted Mar 12, 2019·7 cites·25 claims
- 0988US7388822B2Liquid crystal lens element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted Jun 17, 2008·15 cites·9 claims
- 1087US7548359B2Double-wavelength light source unit and optical head device having four diffraction gratingsASAHI GLASS CO LTD·Filed 2005·Granted Jun 16, 2009·9 cites·14 claims
- 1186US5798805AProjection type display apparatusAG TECHNOLOGY CORP·Filed 1995·Granted Aug 25, 1998·103 cites·21 claims
- 1286US5206746ATransparent-scattering type optical device including a prism with a triangular longitudinal cross sectionASAHI GLASS CO LTD·Filed 1991·Granted Apr 27, 1993·77 cites·20 claims
- 1385USRE38305ELCD device including an illumination device having a polarized light separating sheet between a light guide and the displayASAHI GLASS CO LTD·Filed 2000·Granted Nov 11, 2003·35 cites·40 claims
- 1484US7764354B2Multi-layer diffraction type polarizer and liquid crystal elementASAHI GLASS CO LTD·Filed 2005·Granted Jul 27, 2010·7 cites·7 claims
- 1584US7688700B2Phase correction element and optical head deviceASAHI GLASS CO LTD·Filed 2005·Granted Mar 30, 2010·6 cites·11 claims
- 1682US5245449APolymer dispersed liquid crystal color projection display apparatusASAHI GLASS CO LTD·Filed 1990·Granted Sep 14, 1993·58 cites·15 claims
- 1780US8565058B2Liquid 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
- 1880US7710536B2Liquid crystal diffraction lens element and optical head deviceASAHI GLASS CO LTD·Filed 2007·Granted May 4, 2010·7 cites·20 claims
- 1976US5283675ALiquid crystal display element with electrode having concave-convex surface at liquid crystal sideAG TECHNOLOGY CORP·Filed 1992·Granted Feb 1, 1994·46 cites·32 claims
- 2075US7430076B2Diffraction elementASAHI GLASS CO LTD·Filed 2004·Granted Sep 30, 2008·14 cites·5 claims
- 2175US6891147B2Wavelength-selective diffraction element and an optical head deviceASAHI GLASS CO LTD·Filed 2003·Granted May 10, 2005·19 cites·10 claims
- 2275USRE37377ELCD device including an illumination device having a polarized light separating sheet between a light guide and the displayASAHI GLASS CO LTD·Filed 1998·Granted Sep 18, 2001·43 cites·78 claims
- 2374US6917576B2Retarder and optical head device installing the sameASAHI GLASS CO LTD·Filed 2003·Granted Jul 12, 2005·8 cites·10 claims
- 2473US7738346B2Polarizing diffraction element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted Jun 15, 2010·6 cites·17 claims
- 2572US5844638ALight source apparatus using a cone-shaped element and an applied apparatus thereofAG TECHNOLOGY CORP·Filed 1997·Granted Dec 1, 1998·39 cites·20 claims
- 2669US7719657B2Liquid crystal lens element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted May 18, 2010·3 cites·9 claims
- 2769US5216531AProjection type active matrix polymer dispersed liquid crystal display apparatus with particles of liquid crystal material randomly orientedASAHI GLASS CO LTD·Filed 1991·Granted Jun 1, 1993·34 cites·19 claims
- 2868US10746908B2Optical filter and imaging deviceAGC INC·Filed 2017·Granted Aug 18, 2020·1 cites·24 claims
- 2964US4968881AVoltage detector using electro-optic material having anti-reflective coatingsHAMAMATSU PHOTONICS KK·Filed 1989·Granted Nov 6, 1990·21 cites·12 claims
- 3062US10310150B2Near-infrared cut filter and solid-state imaging deviceAGC INC·Filed 2016·Granted Jun 4, 2019·1 cites·19 claims
- 3161US2008310024A1Diffraction elementASAHI GLASS CO LTD·Filed 2008·Application pending·0 cites
- 3258US5838404ADisplay device with optical member having two parts in overlay relation to reflect light incident at particular angleASAHI GLASS CO LTD·Filed 1995·Granted Nov 17, 1998·21 cites·3 claims
- 3357US5659409ALight source apparatus using a cone-like material and an applied apparatus thereofAG TECHNOLOGY CORP·Filed 1993·Granted Aug 19, 1997·15 cites·29 claims
- 3457US5274480AProjection type display apparatus having an aperture stop means including non-circular openingsASAHI GLASS CO LTD·Filed 1991·Granted Dec 28, 1993·16 cites·12 claims
- 3555US7564504B2Phase plate and an optical data recording/reproducing deviceASAHI GLASS CO LTD·Filed 2005·Granted Jul 21, 2009·1 cites·10 claims
- 3653US2009016191A1Optical head deviceASAHI GLASS CO LTD·Filed 2008·Application pending·0 cites
- 3751US4717893ASpatial light modulatorHAMAMATSU PHOTONICS KK·Filed 1985·Granted Jan 5, 1988·7 cites·2 claims
- 3850US7079202B2Multi-layer diffraction type polarizer and liquid crystal elementASAHI GLASS CO LTD·Filed 2004·Granted Jul 18, 2006·2 cites·4 claims
- 3945US7835252B2Optical head apparatusASAHI GLASS CO LTD·Filed 2007·Granted Nov 16, 2010·0 cites·7 claims
- 4045US5208696ASpatial light modulating device with CRT input imageHAMAMATSU PHOTONICS KK·Filed 1989·Granted May 4, 1993·10 cites·7 claims
- 4144US11378877B2Homogenizer, illuminating optical system, and illuminatorAGC INC·Filed 2020·Granted Jul 5, 2022·0 cites·20 claims
- 4243US4794033AOptical joint comprising antireflection filmsHAMAMATSU PHOTONICS KK·Filed 1986·Granted Dec 27, 1988·9 cites·7 claims
- 4343US4763996ASpatial light modulatorHAMAMATSU PHOTONICS KK·Filed 1985·Granted Aug 16, 1988·7 cites·18 claims
- 4442US2006227283A1Optical element employing liquid crystal having optical isotropyASAHI GLASS CO LTD·Filed 2006·Application pending·0 cites
- 4541US2003123371A1Retarder and optical head device installing the sameASAHI GLASS CO LTD·Filed 2002·Application pending·0 cites
- 4640US2012075539A1Projection display deviceKONISHI TEPPEI·Filed 2011·Application pending·0 cites
- 4733US4923287ASpatial light modulating devices utilizing electro-optic crystalHAMAMATSU PHOTONICS KK·Filed 1989·Granted May 8, 1990·3 cites·7 claims
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