Inventor · disambiguated record
Hisashi Yamaguchi
Also filed as: KAWADA TOYOSHI · KOBAYASHI TETSUYA · YAMAGUCHI HISASHI · YOSHIDA HIDEFUMI
77 granted patents·4 pending applications·3,033 citations·filing 1974–2023
99Inventor score
Top patents by PatentIndex Score
81 records- 0198US7304703B1Vertically-aligned (VA) liquid crystal display deviceSHARP KK·Filed 2000·Granted Dec 4, 2007·122 cites·23 claims
- 0298US7224421B1Vertically-aligned (VA) liquid crystal display deviceSHARP KK·Filed 2000·Granted May 29, 2007·108 cites·6 claims
- 0398US7167224B1Vertically-aligned (VA) liquid crystal display deviceSHARP KK·Filed 2000·Granted Jan 23, 2007·123 cites·3 claims
- 0498US6724452B1Vertically aligned (VA) liquid crystal display deviceSHARP KK·Filed 1998·Granted Apr 20, 2004·484 cites·14 claims
- 0597US7227606B2Vertically-alligned (VA) liquid crystal display deviceSHARP KK·Filed 2003·Granted Jun 5, 2007·69 cites·91 claims
- 0697US4550310ATouch sensing deviceFUJITSU LTD·Filed 1982·Granted Oct 29, 1985·162 cites·2 claims
- 0796US7133015B1Apparatus and method to improve quality of moving image displayed on liquid crystal display deviceSHARP KK·Filed 2000·Granted Nov 7, 2006·85 cites·1 claims
- 0896US6655810B2Lighting unitFUJITSU DISPLAY TECH·Filed 2001·Granted Dec 2, 2003·75 cites·22 claims
- 0995US6552760B1Luminaire with improved light utilization efficiencyFUJITSU LTD·Filed 2000·Granted Apr 22, 2003·89 cites·3 claims
- 1095US6379010B1Projection type displayFUJITSU LTD·Filed 1999·Granted Apr 30, 2002·57 cites·8 claims
- 1194US8134671B2Liquid crystal display deviceTAKEDA ARIHIRO·Filed 2011·Granted Mar 13, 2012·9 cites·14 claims
- 1294US7760305B2Liquid crystal display device with multiple alignment structuresSHARP KK·Filed 2008·Granted Jul 20, 2010·11 cites·21 claims
- 1394US4556871ATouch sensing deviceFUJITSU LTD·Filed 1983·Granted Dec 3, 1985·54 cites·5 claims
- 1493US7821603B2Vertically-alligned (VA) liquid crystal display deviceSHARP KK·Filed 2009·Granted Oct 26, 2010·10 cites·3 claims
- 1592US7965363B2Vertically-aligned (VA) liquid crystal display deviceSHARP KK·Filed 2008·Granted Jun 21, 2011·9 cites·22 claims
- 1692US5764412APolarization separation/conversion device for polarized lighting apparatus and projection display unitFUJITSU LTD·Filed 1995·Granted Jun 9, 1998·118 cites·23 claims
- 1791US4567470ATouch sensing deviceFUJITSU LTD·Filed 1983·Granted Jan 28, 1986·42 cites·4 claims
- 1890US6552709B1Power-on display driving method and display driving circuitNEC CORP·Filed 2000·Granted Apr 22, 2003·43 cites·20 claims
- 1990US6481854B1Projection type display apparatus having air cooling arrangementFUJITSU LTD·Filed 1999·Granted Nov 19, 2002·107 cites·51 claims
- 2090US6246506B1Optical display device having a reflection-type polarizerFUJITSU LTD·Filed 2000·Granted Jun 12, 2001·41 cites·69 claims
- 2190US5196738AData driver circuit of liquid crystal display for achieving digital gray-scaleFUJITSU LTD·Filed 1991·Granted Mar 23, 1993·116 cites·32 claims
- 2290US4680430ACoordinate detecting apparatusFUJITSU LTD·Filed 1985·Granted Jul 14, 1987·117 cites·20 claims
- 2389US6987499B2Method for driving liquid crystal display, liquid crystal display device and monitor provided with the sameNEC LCD TECHNOLOGIES LTD·Filed 2002·Granted Jan 17, 2006·42 cites·22 claims
- 2489US6222515B1Apparatus for controlling data voltage of liquid crystal display unit to achieve multiple gray-scaleFUJITSU LTD·Filed 1991·Granted Apr 24, 2001·98 cites·24 claims
- 2588US7148740B2Boost circuit and semiconductor integrated circuitSEIKO EPSON CORP·Filed 2005·Granted Dec 12, 2006·15 cites·6 claims
- 2688US4368467ADisplay deviceFUJITSU LTD·Filed 1981·Granted Jan 11, 1983·67 cites·33 claims
- 2786US8269923B2Multilayer display element and method of fabricating the sameYAMAGISHI FUMIO·Filed 2009·Granted Sep 18, 2012·13 cites·16 claims
- 2885US5860719AOptical apparatus and cooling method thereofFUJITSU LTD·Filed 1995·Granted Jan 19, 1999·110 cites·28 claims
- 2985US5517207AMethod and a system for driving a display panel of matrix typeFUJITSU LTD·Filed 1994·Granted May 14, 1996·74 cites·35 claims
- 3081US7764261B2Apparatus and method to improve quality of moving image displayed on liquid crystal display deviceSHARP KK·Filed 2006·Granted Jul 27, 2010·3 cites·44 claims
- 3179US5959704ADisplay device having diffraction gratingFUJITSU LTD·Filed 1996·Granted Sep 28, 1999·55 cites·19 claims
- 3278US6111700AOptical display device having a reflection-type polarizerFUJITSU LTD·Filed 1999·Granted Aug 29, 2000·51 cites·29 claims
- 3376US7494259B2Lighting unitSHARP KK·Filed 2003·Granted Feb 24, 2009·14 cites·7 claims
- 3476US6639642B1Display device having diffraction gratingFUJITSU LTD·Filed 2000·Granted Oct 28, 2003·12 cites·9 claims
- 3575US5307084AMethod and apparatus for driving a liquid crystal display panelFUJITSU LTD·Filed 1992·Granted Apr 26, 1994·47 cites·8 claims
- 3673US8421742B2Apparatus and method to improve quality of moving image displayed on liquid crystal display deviceYOSHIDA HIDEFUMI·Filed 2010·Granted Apr 16, 2013·1 cites·14 claims
- 3773US8279165B2Apparatus and method to improve quality of moving image displayed on liquid crystal display deviceYOSHIDA HIDEFUMI·Filed 2010·Granted Oct 2, 2012·1 cites·33 claims
- 3872US4423356ASelf-shift type gas discharge panelFUJITSU LTD·Filed 1982·Granted Dec 27, 1983·16 cites·15 claims
- 3971US5506642AProjector with plastic mirrorFUJITSU LTD·Filed 1994·Granted Apr 9, 1996·32 cites·32 claims
- 4069US12273070B2Circuit device and oscillatorSEIKO EPSON CORP·Filed 2023·Granted Apr 8, 2025·0 cites·14 claims
- 4169US6476591B2Power supply device for driving liquid crystal, liquid crystal device and electronic equipment using the sameSEIKO EPSON CORP·Filed 2001·Granted Nov 5, 2002·10 cites·12 claims
- 4268US5847792AActive matrix type liquid crystal display panel and projection type display device with light shielding film formed on top of active devices and between pixel electrodesFUJITSU LTD·Filed 1996·Granted Dec 8, 1998·37 cites·34 claims
- 4367US6329975B1Liquid-crystal display device with improved interface controlNEC CORP·Filed 1997·Granted Dec 11, 2001·28 cites·8 claims
- 4467US4636789AMethod for driving a matrix type displayFUJITSU LTD·Filed 1983·Granted Jan 13, 1987·23 cites·16 claims
- 4566US10128854B2Oscillation circuit, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2016·Granted Nov 13, 2018·1 cites·14 claims
- 4666US6819366B2Display device with condenser elementsFUJITSU LTD·Filed 2003·Granted Nov 16, 2004·8 cites·3 claims
- 4765US7852439B2Multi-layer display element and manufacturing method for the sameFUJITSU LTD·Filed 2009·Granted Dec 14, 2010·2 cites·20 claims
- 4865US6342782B1Power supply device for driving liquid crystal, liquid crystal device and electronic equipment using the sameSEIKO EPSON CORP·Filed 2000·Granted Jan 29, 2002·8 cites·13 claims
- 4965US5596651ASystem and method for electronic volume control of audio signalsSEIKO EPSON CORP·Filed 1993·Granted Jan 21, 1997·18 cites·7 claims
- 5064US8553188B2Liquid crystal display deviceTAKEDA ARIHIRO·Filed 2012·Granted Oct 8, 2013·0 cites·17 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →