Inventor · disambiguated record
Hiroyuki Kitayama
Also filed as: KITAYAMA HIROYUKI
40 granted patents·7 pending applications·778 citations·filing 1984–2014
98Inventor score
Top patents by PatentIndex Score
47 records- 0192US5344726ACarbon anode for secondary batterySHARP KK·Filed 1993·Granted Sep 6, 1994·71 cites·3 claims
- 0291US5034151AMesomorphic compound, ferroelectric liquid crystal composition containing same and ferroelectric liquid crystal deviceCANON KK·Filed 1989·Granted Jul 23, 1991·29 cites·10 claims
- 0390US4728176AFerroelectric liquid crystal device with metallic auxiliary electrodes provided adjacent to the transparent electrodesCANON KK·Filed 1986·Granted Mar 1, 1988·77 cites·15 claims
- 0489US5136282AFerroelectric liquid crystal apparatus having separate display areas and driving method thereforCANON KK·Filed 1989·Granted Aug 4, 1992·64 cites·10 claims
- 0589US5013137AFerroelectric liquid crystal device having increased tilt angleCANON KK·Filed 1989·Granted May 7, 1991·68 cites·29 claims
- 0688US6333081B1Liquid crystal deviceCANON KK·Filed 2000·Granted Dec 25, 2001·38 cites·6 claims
- 0784US4778259AFerroelectric liquid crystal devices having reverse twist angle and stable states resulting from A.C. excitationCANON KK·Filed 1986·Granted Oct 18, 1988·55 cites·32 claims
- 0883US5482797ANonaqueous secondary batterySHARP KK·Filed 1994·Granted Jan 9, 1996·50 cites·7 claims
- 0981US4882085ALactic acid derivative and liquid crystal composition containing sameCANON KK·Filed 1988·Granted Nov 21, 1989·14 cites·20 claims
- 1080US4674839AFerroelectric liquid crystal apparatus having protective cover meansCANON KK·Filed 1986·Granted Jun 23, 1987·41 cites·11 claims
- 1178US4818078AFerroelectric liquid crystal optical modulation device and driving method therefor for gray scale displayCANON KK·Filed 1986·Granted Apr 4, 1989·39 cites·58 claims
- 1277US7834542B2Organic light-emitting apparatusCANON KK·Filed 2007·Granted Nov 16, 2010·4 cites·12 claims
- 1372US5240637AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1989·Granted Aug 31, 1993·9 cites·7 claims
- 1465US7683533B2Organic electroluminescent device provided with a polarizing plate, a prism member and a phase member in a stacked arrangementCANON KK·Filed 2007·Granted Mar 23, 2010·3 cites·2 claims
- 1563US4846560ALiquid crystal device with ferroelectric liquid crystal oriented at non-pixel portionsCANON KK·Filed 1986·Granted Jul 11, 1989·23 cites·7 claims
- 1662US5292453AFerroelectric liquid crystal composition with improved driving voltage and temperature margins and liquid crystal device using sameCANON KK·Filed 1993·Granted Mar 8, 1994·7 cites·7 claims
- 1761US2015133628A1Polyamine and method for producing thereofRHODIA OPERATIONS·Filed 2014·Application pending·0 cites
- 1859US5405553AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1993·Granted Apr 11, 1995·14 cites·7 claims
- 1958US8491139B2Display apparatusSHIKINA NORIYUKI·Filed 2009·Granted Jul 23, 2013·2 cites·6 claims
- 2058US5599479AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1989·Granted Feb 4, 1997·13 cites·7 claims
- 2157US4535042AElectrophotographic photosensitive member with electron donor and acceptor layersKITAYAMA HIROYUKI·Filed 1984·Granted Aug 13, 1985·16 cites·9 claims
- 2254US8853457B2Polyamine and method for producing thereofKITAYAMA HIROYUKI·Filed 2010·Granted Oct 7, 2014·0 cites·17 claims
- 2354US5641427ALiquid crystal composition, liquid crystal device using the composition liquid crystal apparatus and display methodCANON KK·Filed 1995·Granted Jun 24, 1997·14 cites·25 claims
- 2454US5186858AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1989·Granted Feb 16, 1993·11 cites·7 claims
- 2553US5583682ALiquid crystal device for gradational displayCANON KK·Filed 1994·Granted Dec 10, 1996·17 cites·9 claims
- 2652US5863458ALiquid crystal apparatus and display apparatusCANON KK·Filed 1996·Granted Jan 26, 1999·17 cites·17 claims
- 2752US5114613ALactic acid derivative and liquid crystal composition containing sameCANON KK·Filed 1989·Granted May 19, 1992·3 cites·9 claims
- 2851US5364559AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1993·Granted Nov 15, 1994·4 cites·13 claims
- 2951US5173211AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1989·Granted Dec 22, 1992·10 cites·7 claims
- 3049US7902739B2Organic light emitting device with prismCANON KK·Filed 2007·Granted Mar 8, 2011·0 cites·10 claims
- 3148US5514297AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1993·Granted May 7, 1996·8 cites·7 claims
- 3247US5453861AChiral smectic liquid crystal device and display apparatusCANON KK·Filed 1994·Granted Sep 26, 1995·13 cites·3 claims
- 3346US2011114981A1Light emitting display apparatusCANON KK·Filed 2009·Application pending·0 cites
- 3446US2007159093A1Light emitting apparatusCANON KK·Filed 2006·Application pending·0 cites
- 3545US5948317ALiquid crystal composition, liquid crystal device using the composition, liquid crystal apparatus and display methodCANON KK·Filed 1997·Granted Sep 7, 1999·8 cites·24 claims
- 3644US5688437ALiquid crystal composition, liquid crystal device using the composition, liquid crystal apparatus and display methodCANON KK·Filed 1995·Granted Nov 18, 1997·8 cites·64 claims
- 3742US5250217AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1989·Granted Oct 5, 1993·6 cites·6 claims
- 3842US2006293503A1Polyaminopyridines and method for producing sameTOKYO INST TECH·Filed 2004·Application pending·0 cites
- 3942US2011084896A1Light emitting device, display device, and image pickup apparatusCANON KK·Filed 2010·Application pending·0 cites
- 4041US5424004AChiral smectic liquid crystal composition, liquid crystal device, display apparatus and display methodCANON KK·Filed 1993·Granted Jun 13, 1995·5 cites·19 claims
- 4140US5238601AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1989·Granted Aug 24, 1993·5 cites·7 claims
- 4239US5580489AMethod of producing a liquid crystal compositionCANON KK·Filed 1995·Granted Dec 3, 1996·4 cites·6 claims
- 4338US2006066802A1Reflective electrophoretic display device with improved contrastCANON KK·Filed 2004·Application pending·0 cites
- 4437US2005062907A1Liquid crystal display deviceFiled 2004·Application pending·0 cites
- 4536US5501818AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1994·Granted Mar 26, 1996·3 cites·21 claims
- 4635US5328640AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1993·Granted Jul 12, 1994·3 cites·7 claims
- 4734US5409636AFerroelectric chiral smectic liquid crystal composition and liquid crystal device using sameCANON KK·Filed 1993·Granted Apr 25, 1995·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →