Inventor · disambiguated record
Yasunori Ogawa
Also filed as: OGAWA YASUNORI
59 granted patents·2 pending applications·1,086 citations·filing 1984–2017
99Inventor score
Top patents by PatentIndex Score
61 records- 0192US4938642APortable electric routerHITACHI KOKI KK·Filed 1989·Granted Jul 3, 1990·132 cites·5 claims
- 0291USD795146SInstrument panelHONDA MOTOR CO LTD·Filed 2016·Granted Aug 22, 2017·37 cites·1 claims
- 0390US5865521AProjection-type display apparatusSEIKO EPSON CORP·Filed 1997·Granted Feb 2, 1999·92 cites·19 claims
- 0490USD334329SPortable pneumatic nailerHITACHI KOKI KK·Filed 1991·Granted Mar 30, 1993·37 cites·1 claims
- 0588US5978136AOptical element, polarization illumination device, and projection display apparatusSEIKO EPSON CORP·Filed 1997·Granted Nov 2, 1999·87 cites·22 claims
- 0688USD343345SPortable electric hammerHITACHI KOKI KK·Filed 1992·Granted Jan 18, 1994·36 cites·1 claims
- 0788USD301830SElectric grinderHITACHI KOKI KK·Filed 1987·Granted Jun 27, 1989·40 cites·1 claims
- 0887US6000802AProjection-type display apparatusSEIKO EPSON CORP·Filed 1998·Granted Dec 14, 1999·52 cites·19 claims
- 0982USD797621SSteering wheelHONDA MOTOR CO LTD·Filed 2016·Granted Sep 19, 2017·22 cites·1 claims
- 1082USD330152SPortable electric screw driverHITACHI KOKI KK·Filed 1990·Granted Oct 13, 1992·23 cites·1 claims
- 1181US6788377B1Liquid crystal device and projector using the sameSEIKO EPSON CORP·Filed 2000·Granted Sep 7, 2004·23 cites·10 claims
- 1281USRE38084EProjectorSEIKO EPSON CORP·Filed 2001·Granted Apr 22, 2003·16 cites·46 claims
- 1381US6527393B1Illumination optical system and projector using sameSEIKO EPSON CORP·Filed 2000·Granted Mar 4, 2003·21 cites·49 claims
- 1478US7276972B2Distributed amplifierOKI ELECTRIC IND CO LTD·Filed 2005·Granted Oct 2, 2007·7 cites·4 claims
- 1578USD303346SCordless hand-held cutterHITACHI KOKI KK·Filed 1986·Granted Sep 12, 1989·17 cites·1 claims
- 1677USD314125SOrbital sanderHITACHI KOKI KK·Filed 1988·Granted Jan 29, 1991·17 cites·1 claims
- 1777US4599583AMixed dual frequency generating systemFUJITSU LTD·Filed 1984·Granted Jul 8, 1986·41 cites·11 claims
- 1876US7140739B2Light source device and projectorSEIKO EPSON CORP·Filed 2004·Granted Nov 28, 2006·10 cites·14 claims
- 1976US7011412B2Polarization converter, an illumination optical device having the polarization converter and projectorSEIKO EPSON CORP·Filed 2003·Granted Mar 14, 2006·21 cites·5 claims
- 2075US7834866B2Display panel driver and display panel driving methodNEC VIEWTECHNOLOGY LTD·Filed 2006·Granted Nov 16, 2010·3 cites·12 claims
- 2175USD335619SPortable electric hammerHITACHI KOKI KK·Filed 1991·Granted May 18, 1993·19 cites·1 claims
- 2274USRE41680EProjectorSEIKO EPSON CORP·Filed 2007·Granted Sep 14, 2010·2 cites·63 claims
- 2372USRE40251EOptical element, polarization illumination device, and projectorSEIKO EPSON CORP·Filed 2005·Granted Apr 22, 2008·2 cites·24 claims
- 2472US6830338B2Projector and optical deviceSEIKO EPSON CORP·Filed 2001·Granted Dec 14, 2004·8 cites·24 claims
- 2571US6018331AFrame display control in an image display having a liquid crystal display panelNEC CORP·Filed 1997·Granted Jan 25, 2000·37 cites·6 claims
- 2670US6846079B2Polarization converter, illumination optical device having the polarization converter and projectorSEIKO EPSON CORP·Filed 2003·Granted Jan 25, 2005·14 cites·12 claims
- 2770US6286961B1Illuminating optical system and projection type displaySEIKO EPSON CORP·Filed 1998·Granted Sep 11, 2001·40 cites·50 claims
- 2869US6247817B1ProjectorSEIKO EPSON CORP·Filed 2000·Granted Jun 19, 2001·9 cites·6 claims
- 2967US7648247B2Light source device and projectorSEIKO EPSON CORP·Filed 2006·Granted Jan 19, 2010·2 cites·14 claims
- 3067US6491397B2Illumination optical system and projector using the sameSEIKO EPSON CORP·Filed 2001·Granted Dec 10, 2002·11 cites·10 claims
- 3167US6141150ADichroic prism, prism unit, and projection display apparatusSEIKO EPSON CORP·Filed 1997·Granted Oct 31, 2000·25 cites·20 claims
- 3265USD804374SAirbag coverHONDA MOTOR CO LTD·Filed 2016·Granted Dec 5, 2017·10 cites·1 claims
- 3365US7221348B2Liquid crystal display device and method for driving the sameNEC VIEWTECHNOLOGY LTD·Filed 2003·Granted May 22, 2007·8 cites·8 claims
- 3464USRE39040EProjectorSEIKO EPSON CORP·Filed 2002·Granted Mar 28, 2006·6 cites·25 claims
- 3563US7036942B2Optical filter, optical device, and projectorSEIKO EPSON CORP·Filed 2003·Granted May 2, 2006·5 cites·11 claims
- 3663US4766594ADigital network system having arrangement for testing digital subscriber lineFUJITSU LTD·Filed 1986·Granted Aug 23, 1988·23 cites·7 claims
- 3762US6866387B2Projector and optical deviceSEIKO EPSON CORP·Filed 2004·Granted Mar 15, 2005·4 cites·2 claims
- 3861USRE40397EOptical device and projectorSEIKO EPSON CORP·Filed 2005·Granted Jun 24, 2008·2 cites·9 claims
- 3961USD323964SPneumatic nailerHITACHI KOKI KK·Filed 1989·Granted Feb 18, 1992·8 cites·1 claims
- 4059US7029127B2ProjectorSEIKO EPSON CORP·Filed 2004·Granted Apr 18, 2006·4 cites·23 claims
- 4158USRE39243EOptical element, polarization illumination device, and projectorSEIKO EPSON CORP·Filed 2001·Granted Aug 22, 2006·2 cites·24 claims
- 4256USRE39702EProjectorSEIKO EPSON CORP·Filed 2001·Granted Jun 26, 2007·1 cites·52 claims
- 4356US6869186B2Optical device and projectorSEIKO EPSON CORP·Filed 2003·Granted Mar 22, 2005·4 cites·6 claims
- 4454US6558001B2ProjectorSEIKO EPSON CORP·Filed 2001·Granted May 6, 2003·3 cites·14 claims
- 4553US6778015B2Distributed amplifierOKI ELECTRIC IND CO LTD·Filed 2002·Granted Aug 17, 2004·7 cites·17 claims
- 4652US6142634AProjectorSEIKO EPSON CORP·Filed 1997·Granted Nov 7, 2000·12 cites·21 claims
- 4752US4754273ASystem for controlling network activation sequenceFUJITSU LTD·Filed 1987·Granted Jun 28, 1988·13 cites·4 claims
- 4851US6195143B1Liquid crystal panel structure with micro-lens array and projector using the micro-lens arraySEIKO EPSON CORP·Filed 1999·Granted Feb 27, 2001·17 cites·20 claims
- 4951US4812839ASystem for controlling network activation sequenceFUJITSU LTD·Filed 1988·Granted Mar 14, 1989·12 cites·2 claims
- 5048US7253796B2Circuit for and method of driving liquid crystal panel of liquid crystal projectorNEC VIEWTECHNOLOGY LTD·Filed 2003·Granted Aug 7, 2007·0 cites·19 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yasunori Ogawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →