Inventor · disambiguated record
Takeshi Takezawa
Also filed as: TAKEZAWA TAKESHI
69 granted patents·6 pending applications·468 citations·filing 2000–2020
99Inventor score
Top patents by PatentIndex Score
75 records- 0192US8591034B2ProjectorTERASHIMA TETSUO·Filed 2011·Granted Nov 26, 2013·12 cites·13 claims
- 0288US6935753B2ProjectorSEIKO EPSON CORP·Filed 2002·Granted Aug 30, 2005·33 cites·28 claims
- 0386US11150548B2Light source apparatus and projectorSEIKO EPSON CORP·Filed 2019·Granted Oct 19, 2021·3 cites·10 claims
- 0486US8203280B2Light source device, projector, and driving method of discharge lampYAMAUCHI KENTARO·Filed 2008·Granted Jun 19, 2012·7 cites·7 claims
- 0586US6646690B1Arrangement of λ/2 retardation plate in projectorSEIKO EPSON CORP·Filed 2000·Granted Nov 11, 2003·30 cites·11 claims
- 0685US7247071B2Light source lamp and manufacturing method thereof, and projectorSEIKO EPSON CORP·Filed 2005·Granted Jul 24, 2007·8 cites·14 claims
- 0785US7040768B2Light source unit, illumination optical device, projector, and method of manufacturing light source unitSEIKO EPSON CORP·Filed 2004·Granted May 9, 2006·20 cites·18 claims
- 0884US7946715B2Light source and projectorSEIKO EPSON CORP·Filed 2008·Granted May 24, 2011·13 cites·12 claims
- 0983US8044602B2Method of driving discharge lamp, driving device, and projectorSEIKO EPSON CORP·Filed 2009·Granted Oct 25, 2011·7 cites·13 claims
- 1083US7397189B2Lamp device and projector therewithSEIKO EPSON CORP·Filed 2005·Granted Jul 8, 2008·7 cites·12 claims
- 1182US8558471B2Light source device, projector, and driving method of discharge lampYAMAUCHI KENTARO·Filed 2011·Granted Oct 15, 2013·4 cites·9 claims
- 1282US7377670B2Illumination device and projector equipping the sameSEIKO EPSON CORP·Filed 2004·Granted May 27, 2008·16 cites·24 claims
- 1381US8287135B2Light source device and projector with improved airflowTAKEZAWA TAKESHI·Filed 2010·Granted Oct 16, 2012·4 cites·20 claims
- 1481US7461954B2Lighting system, projector, and method for assembling lighting systemSEIKO EPSON CORP·Filed 2007·Granted Dec 9, 2008·4 cites·14 claims
- 1581US7063423B2Light source device and projectorSEIKO EPSON CORP·Filed 2004·Granted Jun 20, 2006·18 cites·20 claims
- 1681US6788377B1Liquid crystal device and projector using the sameSEIKO EPSON CORP·Filed 2000·Granted Sep 7, 2004·23 cites·10 claims
- 1780US7059746B2Illumination device and projector equipping the sameSEIKO EPSON CORP·Filed 2004·Granted Jun 13, 2006·14 cites·54 claims
- 1880US6619800B1Projector comprising a polarizer attached to a transmissive flexible plate material that bends responsive to changes in the shape of the polarizerSEIKO EPSON CORP·Filed 2000·Granted Sep 16, 2003·20 cites·22 claims
- 1979US8350489B2Method of driving discharge lamp, driving device, and projectorSEIKO EPSON CORP·Filed 2011·Granted Jan 8, 2013·3 cites·13 claims
- 2079US7232241B2Illumination system, projector, and method for manufacturing illumination systemSEIKO EPSON CORP·Filed 2003·Granted Jun 19, 2007·13 cites·54 claims
- 2179US6523958B2Optical component and projector using the sameSEIKO EPSON CORP·Filed 2001·Granted Feb 25, 2003·20 cites·23 claims
- 2277US8138684B2Discharge lamp lighting device, control method thereof, and projectorTANAKA KAZUHIRO·Filed 2009·Granted Mar 20, 2012·6 cites·17 claims
- 2377US7972013B2Light source having a holding unit with air supply port for cooling air and projectorSEIKO EPSON CORP·Filed 2008·Granted Jul 5, 2011·5 cites·12 claims
- 2475US8506128B2Light source device, illumination system, and projectorSAKATA HIDEFUMI·Filed 2010·Granted Aug 13, 2013·3 cites·11 claims
- 2575US7111962B2Light source and projectorSEIKO EPSON CORP·Filed 2004·Granted Sep 26, 2006·11 cites·21 claims
- 2675US6481850B1ProjectorSEIKO EPSON CORP·Filed 2000·Granted Nov 19, 2002·17 cites·18 claims
- 2774US7128424B2Light source device and projectorSEIKO EPSON CORP·Filed 2006·Granted Oct 31, 2006·2 cites·2 claims
- 2874US7044609B2Light source device and projectorSEIKO EPSON CORP·Filed 2004·Granted May 16, 2006·8 cites·2 claims
- 2974US6631039B2Optical unit and projector using the sameSEIKO EPSON CORP·Filed 2001·Granted Oct 7, 2003·16 cites·10 claims
- 3073US8217582B2Light source device, image display apparatus, and method of generating time-division color-separated lightYAMAUCHI KENTARO·Filed 2009·Granted Jul 10, 2012·4 cites·15 claims
- 3173US6811262B2Projector comprising an optical component having a rock crystal memberSEIKO EPSON CORP·Filed 2004·Granted Nov 2, 2004·8 cites·17 claims
- 3273US6536901B2ProjectorSEIKO EPSON CORP·Filed 2001·Granted Mar 25, 2003·12 cites·6 claims
- 3372US8242425B2Projector having first and second lamps with an illumination control device for turning on lamp having higher contrast with respect to a light modulation device and method of controlling lighting thereofMATSUMOTO YUICHIRO·Filed 2010·Granted Aug 14, 2012·4 cites·10 claims
- 3471US7999490B2Light source, projector, and method for driving light sourceSEIKO EPSON CORP·Filed 2008·Granted Aug 16, 2011·4 cites·20 claims
- 3570US8167438B2Light source device, projector, and driving method of discharge lampYAMAUCHI KENTARO·Filed 2008·Granted May 1, 2012·2 cites·10 claims
- 3669US7830098B2Projector and light source device thereofSEIKO EPSON CORP·Filed 2008·Granted Nov 9, 2010·3 cites·10 claims
- 3768US6536906B2ProjectorSEIKO EPSON CORP·Filed 2001·Granted Mar 25, 2003·8 cites·17 claims
- 3867US7665867B2Light source unit, method of manufacturing light source unit, and projectorSEIKO EPSON CORP·Filed 2007·Granted Feb 23, 2010·1 cites·64 claims
- 3966US7661830B2Lamp device and projector equipped with the sameSEIKO EPSON CORP·Filed 2007·Granted Feb 16, 2010·4 cites·12 claims
- 4065US8317339B2Discharge lamp lighting device, projector, and control method of discharge lamp lighting deviceTAKEZAWA TAKESHI·Filed 2009·Granted Nov 27, 2012·2 cites·15 claims
- 4165USRE43777ELight source device and projectorFUJIMORI MOTOYUKI·Filed 2007·Granted Oct 30, 2012·2 cites·48 claims
- 4265US7329011B2Light source unit, method of manufacturing light source unit, and projectorSEIKO EPSON CORP·Filed 2004·Granted Feb 12, 2008·9 cites·58 claims
- 4365US6786620B1Light source device and projector utilizing the sameSEIKO EPSON CORP·Filed 2000·Granted Sep 7, 2004·11 cites·29 claims
- 4465US6702443B2ProjectorSEIKO EPSON CORP·Filed 2002·Granted Mar 9, 2004·7 cites·10 claims
- 4564US8215779B2Projector having a plurality of light source devicesTAKEZAWA TAKESHI·Filed 2009·Granted Jul 10, 2012·2 cites·8 claims
- 4664US6722768B1ProjectorSEIKO EPSON CORP·Filed 2000·Granted Apr 20, 2004·9 cites·44 claims
- 4763US8042953B2Projector using ballast controlled high-pressure discharge lampsSEIKO EPSON CORP·Filed 2009·Granted Oct 25, 2011·2 cites·7 claims
- 4863US7001027B2Light source device and projectorSEIKO EPSON CORP·Filed 2004·Granted Feb 21, 2006·8 cites·4 claims
- 4962US7213928B2Light source device and projectorSEIKO EPSON CORP·Filed 2005·Granted May 8, 2007·3 cites·20 claims
- 5060US8044613B2Discharge lamp lighting device, control method thereof, and projectorSEIKO EPSON CORP·Filed 2009·Granted Oct 25, 2011·1 cites·10 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →