Inventor
TAKEZAWA TAKESHI
JP69 patents
⚠️ This page may combine multiple inventors who share the name “TAKEZAWA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
40 patentsUS6935753B2Aug 30, 2005
Projector
SEIKO EPSON CORP33 citations93
US6788377B1Sep 7, 2004
Liquid crystal device and projector using the same
SEIKO EPSON CORP23 citations93
US6646690B1Nov 11, 2003
Arrangement of λ/2 retardation plate in projector
SEIKO EPSON CORP30 citations93
US6523958B2Feb 25, 2003
Optical component and projector using the same
SEIKO EPSON CORP20 citations93
US7063423B2Jun 20, 2006
Light source device and projector
SEIKO EPSON CORP18 citations92
US7040768B2May 9, 2006
Light source unit, illumination optical device, projector, and method of manufacturing light source unit
SEIKO EPSON CORP20 citations92
US6619800B1Sep 16, 2003
Projector comprising a polarizer attached to a transmissive flexible plate material that bends responsive to changes in the shape of the polarizer
SEIKO EPSON CORP20 citations92
US8044602B2Oct 25, 2011
Method of driving discharge lamp, driving device, and projector
SEIKO EPSON CORP7 citations84
US7946715B2May 24, 2011
Light source and projector
SEIKO EPSON CORP13 citations84
US7377670B2May 27, 2008
Illumination device and projector equipping the same
SEIKO EPSON CORP16 citations84
US7232241B2Jun 19, 2007
Illumination system, projector, and method for manufacturing illumination system
SEIKO EPSON CORP13 citations84
US7111962B2Sep 26, 2006
Light source and projector
SEIKO EPSON CORP11 citations84
US7059746B2Jun 13, 2006
Illumination device and projector equipping the same
SEIKO EPSON CORP14 citations84
US6481850B1Nov 19, 2002
Projector
SEIKO EPSON CORP17 citations84
US7329011B2Feb 12, 2008
Light source unit, method of manufacturing light source unit, and projector
SEIKO EPSON CORP9 citations83
US6631039B2Oct 7, 2003
Optical unit and projector using the same
SEIKO EPSON CORP16 citations83
US7397189B2Jul 8, 2008
Lamp device and projector therewith
SEIKO EPSON CORP7 citations74
US7247071B2Jul 24, 2007
Light source lamp and manufacturing method thereof, and projector
SEIKO EPSON CORP8 citations74
US7044609B2May 16, 2006
Light source device and projector
SEIKO EPSON CORP8 citations74
US7001027B2Feb 21, 2006
Light source device and projector
SEIKO EPSON CORP8 citations74
US6786620B1Sep 7, 2004
Light source device and projector utilizing the same
SEIKO EPSON CORP11 citations74
US6722768B1Apr 20, 2004
Projector
SEIKO EPSON CORP9 citations74
US6702443B2Mar 9, 2004
Projector
SEIKO EPSON CORP7 citations74
US6536901B2Mar 25, 2003
Projector
SEIKO EPSON CORP12 citations74
US11150548B2Oct 19, 2021
Light source apparatus and projector
SEIKO EPSON CORP3 citations73
US6811262B2Nov 2, 2004
Projector comprising an optical component having a rock crystal member
SEIKO EPSON CORP8 citations73
US6536906B2Mar 25, 2003
Projector
SEIKO EPSON CORP8 citations73
US8350489B2Jan 8, 2013
Method of driving discharge lamp, driving device, and projector
SEIKO EPSON CORP3 citations63
US8042953B2Oct 25, 2011
Projector using ballast controlled high-pressure discharge lamps
SEIKO EPSON CORP2 citations63
US7830098B2Nov 9, 2010
Projector and light source device thereof
SEIKO EPSON CORP3 citations63
US7661830B2Feb 16, 2010
Lamp device and projector equipped with the same
SEIKO EPSON CORP4 citations63
US7484853B2Feb 3, 2009
Light source device and projector
SEIKO EPSON CORP4 citations63
US7461954B2Dec 9, 2008
Lighting system, projector, and method for assembling lighting system
SEIKO EPSON CORP4 citations63
US7400100B2Jul 15, 2008
Discharge-lamp lighting apparatus and projector
SEIKO EPSON CORP5 citations63
US7213928B2May 8, 2007
Light source device and projector
SEIKO EPSON CORP3 citations63
US7128424B2Oct 31, 2006
Light source device and projector
SEIKO EPSON CORP2 citations63
US7999490B2Aug 16, 2011
Light source, projector, and method for driving light source
SEIKO EPSON CORP4 citations62
US7972013B2Jul 5, 2011
Light source having a holding unit with air supply port for cooling air and projector
SEIKO EPSON CORP5 citations62
US7712921B2May 11, 2010
Light source device, method of manufacturing light source, and projector
SEIKO EPSON CORP1 citations62
US7140733B2Nov 28, 2006
Light source device and projector
SEIKO EPSON CORP4 citations62
YAMAUCHI KENTARO
4 patentsUS8203280B2Jun 19, 2012
Light source device, projector, and driving method of discharge lamp
YAMAUCHI KENTARO7 citations83
US8558471B2Oct 15, 2013
Light source device, projector, and driving method of discharge lamp
YAMAUCHI KENTARO4 citations73
US8217582B2Jul 10, 2012
Light source device, image display apparatus, and method of generating time-division color-separated light
YAMAUCHI KENTARO4 citations62
US8167438B2May 1, 2012
Light source device, projector, and driving method of discharge lamp
YAMAUCHI KENTARO2 citations62
TAKEZAWA TAKESHI
3 patentsUS8317339B2Nov 27, 2012
Discharge lamp lighting device, projector, and control method of discharge lamp lighting device
TAKEZAWA TAKESHI2 citations62
US8287135B2Oct 16, 2012
Light source device and projector with improved airflow
TAKEZAWA TAKESHI4 citations62
US8215779B2Jul 10, 2012
Projector having a plurality of light source devices
TAKEZAWA TAKESHI2 citations62
TERASHIMA TETSUO
1 patentTANAKA KAZUHIRO
1 patentSAKATA HIDEFUMI
1 patentShowing the top 50 of 69 patents by PatentIndex Score.