Inventor
OGAWA YASUNORI
JP65 patents
⚠️ This page may combine multiple inventors who share the name “OGAWA YASUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
26 patentsUS5865521AFeb 2, 1999
Projection-type display apparatus
SEIKO EPSON CORP92 citations99
US6000802ADec 14, 1999
Projection-type display apparatus
SEIKO EPSON CORP52 citations96
US5978136ANov 2, 1999
Optical element, polarization illumination device, and projection display apparatus
SEIKO EPSON CORP87 citations96
US6788377B1Sep 7, 2004
Liquid crystal device and projector using the same
SEIKO EPSON CORP23 citations93
US6527393B1Mar 4, 2003
Illumination optical system and projector using same
SEIKO EPSON CORP21 citations93
US6286961B1Sep 11, 2001
Illuminating optical system and projection type display
SEIKO EPSON CORP40 citations93
USRE38084EApr 22, 2003
Projector
SEIKO EPSON CORP16 citations92
US6141150AOct 31, 2000
Dichroic prism, prism unit, and projection display apparatus
SEIKO EPSON CORP25 citations92
US7011412B2Mar 14, 2006
Polarization converter, an illumination optical device having the polarization converter and projector
SEIKO EPSON CORP21 citations90
US6195143B1Feb 27, 2001
Liquid crystal panel structure with micro-lens array and projector using the micro-lens array
SEIKO EPSON CORP17 citations84
US6846079B2Jan 25, 2005
Polarization converter, illumination optical device having the polarization converter and projector
SEIKO EPSON CORP14 citations81
USRE39859ESep 25, 2007
Dichroic prism, prism unit, and projection display apparatus
SEIKO EPSON CORP8 citations74
US7140739B2Nov 28, 2006
Light source device and projector
SEIKO EPSON CORP10 citations74
USRE39040EMar 28, 2006
Projector
SEIKO EPSON CORP6 citations74
US6830338B2Dec 14, 2004
Projector and optical device
SEIKO EPSON CORP8 citations74
US6278500B1Aug 21, 2001
Liquid crystal device and projector display device having a specific relationship for the F-numbers of the illumination optical system
SEIKO EPSON CORP8 citations74
US6247817B1Jun 19, 2001
Projector
SEIKO EPSON CORP9 citations74
US6142634ANov 7, 2000
Projector
SEIKO EPSON CORP12 citations74
US6491397B2Dec 10, 2002
Illumination optical system and projector using the same
SEIKO EPSON CORP11 citations73
US6315417B1Nov 13, 2001
Projector
SEIKO EPSON CORP7 citations73
USRE41680ESep 14, 2010
Projector
SEIKO EPSON CORP2 citations63
US7648247B2Jan 19, 2010
Light source device and projector
SEIKO EPSON CORP2 citations63
USRE40397EJun 24, 2008
Optical device and projector
SEIKO EPSON CORP2 citations63
USRE40251EApr 22, 2008
Optical element, polarization illumination device, and projector
SEIKO EPSON CORP2 citations63
USRE39702EJun 26, 2007
Projector
SEIKO EPSON CORP1 citations63
USRE39243EAug 22, 2006
Optical element, polarization illumination device, and projector
SEIKO EPSON CORP2 citations63
HITACHI KOKI KK
9 patentsUSD330152SOct 13, 1992
Portable electric screw driver
HITACHI KOKI KK23 citations93
US4938642AJul 3, 1990
Portable electric router
HITACHI KOKI KK132 citations93
USD334329SMar 30, 1993
Portable pneumatic nailer
HITACHI KOKI KK37 citations92
USD343345SJan 18, 1994
Portable electric hammer
HITACHI KOKI KK36 citations90
USD301830SJun 27, 1989
Electric grinder
HITACHI KOKI KK40 citations87
USD303346SSep 12, 1989
Cordless hand-held cutter
HITACHI KOKI KK17 citations82
USD314125SJan 29, 1991
Orbital sander
HITACHI KOKI KK17 citations81
USD335619SMay 18, 1993
Portable electric hammer
HITACHI KOKI KK19 citations79
USD323964SFeb 18, 1992
Pneumatic nailer
HITACHI KOKI KK8 citations74
FUJITSU LTD
4 patentsUS4599583AJul 8, 1986
Mixed dual frequency generating system
FUJITSU LTD41 citations92
US4766594AAug 23, 1988
Digital network system having arrangement for testing digital subscriber line
FUJITSU LTD23 citations81
US4812839AMar 14, 1989
System for controlling network activation sequence
FUJITSU LTD12 citations72
US4754273AJun 28, 1988
System for controlling network activation sequence
FUJITSU LTD13 citations72
HONDA MOTOR CO LTD
3 patentsKUMIAI CHEMICAL INDUSTRY CO
3 patentsUS5763616AJun 9, 1998
Indazolesulfonylurea derivative, its use and intermediate for its production
KUMIAI CHEMICAL INDUSTRY CO17 citations91
US5670452ASep 23, 1997
Indazolesulfonylurea derivative, its use and intermediate for its production
KUMIAI CHEMICAL INDUSTRY CO17 citations81
US5534481AJul 9, 1996
Indazolesulfonylurea derivative, its use and intermediate for its production
KUMIAI CHEMICAL INDUSTRY CO17 citations81
OKI ELECTRIC IND CO LTD
2 patentsNEC VIEWTECHNOLOGY LTD
2 patentsNEC CORP
1 patentShowing the top 50 of 65 patents by PatentIndex Score.