Inventor · disambiguated record
Toshiyuki Hirai
Also filed as: HIRAI TOSHIYUKI
32 granted patents·6 pending applications·1,001 citations·filing 1983–2025
97Inventor score
Top patents by PatentIndex Score
38 records- 0195US5473450ALiquid crystal display device with a polymer between liquid crystal regionsSHARP KK·Filed 1993·Granted Dec 5, 1995·183 cites·95 claims
- 0295US5450220APolymer dispersed liquid crystal with polymer glass transition above 50° C. and low isotropic transition shiftSHARP KK·Filed 1993·Granted Sep 12, 1995·88 cites·24 claims
- 0394US11851375B2Ceramic complex and method for producing the sameNICHIA CORP·Filed 2021·Granted Dec 26, 2023·2 cites·7 claims
- 0492US5668651APolymer-wall LCD having liquid crystal molecules having a plane-symmetrical bend orientationSHARP KK·Filed 1995·Granted Sep 16, 1997·142 cites·23 claims
- 0589US8807554B2Sheet conveying roller and image forming apparatusSUMITOMO RUBBER IND·Filed 2013·Granted Aug 19, 2014·10 cites·10 claims
- 0687US5698134AElectrooptical systemMERCK KGAA·Filed 1994·Granted Dec 16, 1997·70 cites·27 claims
- 0785US5579140AMultiple domain liquid crystal display element and a manufacturing method of the sameSHARP KK·Filed 1994·Granted Nov 26, 1996·71 cites·50 claims
- 0885US4825359AData processing system for array computationMITSUBISHI ELECTRIC CORP·Filed 1983·Granted Apr 25, 1989·99 cites·3 claims
- 0982US2025287742A1Light emitting deviceNICHIA CORP·Filed 2025·Application pending·0 cites
- 1080US12371383B2Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compactNICHIA CORP·Filed 2023·Granted Jul 29, 2025·0 cites·1 claims
- 1180US5643471ALiquid crystal device and method for producing the sameSHARP KK·Filed 1995·Granted Jul 1, 1997·63 cites·56 claims
- 1278US10261460B2Paper feed roller and image forming apparatus with the paper feed rollerSUMITOMO RUBBER IND·Filed 2016·Granted Apr 16, 2019·2 cites·4 claims
- 1378US5342545APolymer dispersion type liquid crystal display element and reflection type liquid crystal display deviceSHARP KK·Filed 1992·Granted Aug 30, 1994·34 cites·11 claims
- 1477US5620630APolymer dispersed liquid crystal display device, and a method for producing the sameSHARP KK·Filed 1995·Granted Apr 15, 1997·30 cites·9 claims
- 1575US12342665B2Light emitting deviceNICHIA CORP·Filed 2022·Granted Jun 24, 2025·0 cites·4 claims
- 1675US5804609ALiquid crystal composite layer of the dispersion type, method for the production thereof and liquid crystal materials used thereinMERCK PATENT GMBH·Filed 1996·Granted Sep 8, 1998·37 cites·4 claims
- 1774US7367554B2Member for preventing feeding of a plurality of sheets at a timeSUMITOMO RUBBER IND·Filed 2005·Granted May 6, 2008·5 cites·11 claims
- 1872US11897814B2Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compactNICHIA CORP·Filed 2021·Granted Feb 13, 2024·0 cites·14 claims
- 1972US7866657B2Paper-feeding rollerSUMITOMO RUBBER IND·Filed 2005·Granted Jan 11, 2011·5 cites·4 claims
- 2070US5583673APolymer dispersed liquid crystal display device, and a method for producing the sameSHARP KK·Filed 1995·Granted Dec 10, 1996·20 cites·21 claims
- 2169US11585494B2Fluorescent module and illumination deviceNICHIA CORP·Filed 2021·Granted Feb 21, 2023·0 cites·17 claims
- 2269US5608555APolymer dispersed liquid crystal display device, and a method for producing the same, wherein the polymer forms wallsSHARP KK·Filed 1995·Granted Mar 4, 1997·19 cites·13 claims
- 2367US5477352ALiquid crystal display device with liquid crystal dispersed or impregnated in a perfluoro-type polymer of perfluoroalkyl acrylate or methacrylateSHARP KAUSHIKI KAISHA·Filed 1993·Granted Dec 19, 1995·22 cites·12 claims
- 2464US2025145887A1Sintered body and light emitting deviceNICHIA CORP·Filed 2024·Application pending·0 cites
- 2563US11498883B2Method for producing ceramic compositeNICHIA CORP·Filed 2020·Granted Nov 15, 2022·0 cites·18 claims
- 2663US7545313B2Off-axis angle estimation method and apparatus using the sameMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Jun 9, 2009·20 cites·5 claims
- 2762US2025034452A1Method for producing ceramic sintered bodyNICHIA CORP·Filed 2024·Application pending·0 cites
- 2861US5517343ALCD device with polymeric electrode extending into lc layer, and method of makingSHARP KK·Filed 1994·Granted May 14, 1996·23 cites·13 claims
- 2959US11131433B2Fluorescent module and illumination deviceNICHIA CORP·Filed 2019·Granted Sep 28, 2021·0 cites·21 claims
- 3057US5394256AEncapsulated liquid crystal in liquid crystal material where one liquid crystal has positive birefringence and dielectric anisotropy, the other has only one positive of birefringence and dielectric anisotropySHARP KK·Filed 1992·Granted Feb 28, 1995·23 cites·5 claims
- 3156US5523127ALiquid crystal composite layer of the dispersion type, method for the production thereof and liquid crystal materials used thereinMERCK PATENT GMBH·Filed 1993·Granted Jun 4, 1996·19 cites·18 claims
- 3255US12486455B2Ceramic complex, light emitting device, and method for producing ceramic complexNICHIA CORP·Filed 2021·Granted Dec 2, 2025·0 cites·6 claims
- 3354US2020002109A1Rubber composition and paper feeding roller formed of the sameSUMITOMO RUBBER IND·Filed 2019·Application pending·0 cites
- 3452US10745543B2Antistatic rubber compositionSUMITOMO RUBBER IND·Filed 2018·Granted Aug 18, 2020·0 cites·5 claims
- 3552US6757461B2Tunable dispersion compensation device, optical receiver, and optical fiber communication systemMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Jun 29, 2004·2 cites·24 claims
- 3651US5286408ALiquid crystal display deviceSHARP KK·Filed 1991·Granted Feb 15, 1994·12 cites·3 claims
- 3740US2018072528A1Paper feed roller and image forming apparatus with the paper feed rollerSUMITOMO RUBBER IND·Filed 2017·Application pending·0 cites
- 3829US2010295239A1Paper sheet multi-feed preventing memberMINE AKIHIRO·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →