Inventor
YOKOYAMA OSAMU
JP101 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
44 patentsUS6742907B2Jun 1, 2004
Illumination device and display device using it
SEIKO EPSON CORP213 citations99
US6547400B1Apr 15, 2003
Light source device, optical device, and liquid-crystal display device
SEIKO EPSON CORP295 citations99
US6011602AJan 4, 2000
Lighting apparatus with a light guiding body having projections in the shape of a trapezoid
SEIKO EPSON CORP331 citations99
US10281725B2May 7, 2019
Light flux diameter expanding element and image display device
SEIKO EPSON CORP40 citations98
US7205964B1Apr 17, 2007
Light source and display device
SEIKO EPSON CORP110 citations98
US6882379B1Apr 19, 2005
Light source device including a planar light source having a single, substantially continuous light emission area and display device incorporating the light source device
SEIKO EPSON CORP87 citations98
US7190116B2Mar 13, 2007
Display device with a narrow frame
SEIKO EPSON CORP37 citations96
US7131735B2Nov 7, 2006
Light source device, optical device, and liquid-crystal display device
SEIKO EPSON CORP54 citations96
US7038377B2May 2, 2006
Display device with a narrow frame
SEIKO EPSON CORP28 citations96
US6628067B2Sep 30, 2003
Organic electroluminescent white light source and method for manufacturing the same
SEIKO EPSON CORP63 citations96
US6607277B2Aug 19, 2003
Projector display comprising light source units
SEIKO EPSON CORP61 citations96
US6507379B1Jan 14, 2003
Liquid crystal projection device having a liquid crystal display element that includes an electroluminescent element
SEIKO EPSON CORP41 citations96
US6247826B1Jun 19, 2001
Illumination device and bulletin board device
SEIKO EPSON CORP75 citations96
US6094294AJul 25, 2000
Optical modulator device, display and electronic apparatus
SEIKO EPSON CORP58 citations96
US5479220ADec 26, 1995
Eyeglass lens
SEIKO EPSON CORP65 citations96
US5161040ANov 3, 1992
Optical system with aberration suppression and optical head utilizing the same
SEIKO EPSON CORP103 citations96
USRE42215EMar 15, 2011
Display device having a connection area outside the display area
SEIKO EPSON CORP16 citations93
US7352582B2Apr 1, 2008
Reinforcing structure, display device, and electronic apparatus
SEIKO EPSON CORP22 citations93
US6671014B2Dec 30, 2003
Liquid projection device having a liquid crystal display element that includes an electroluminescent element
SEIKO EPSON CORP25 citations93
US6626551B2Sep 30, 2003
Lighting device, and electronic device using the same
SEIKO EPSON CORP16 citations93
US6585379B2Jul 1, 2003
Projector and method of manufacturing a light modulation device
SEIKO EPSON CORP28 citations93
US6264343B1Jul 24, 2001
Input tablet and liquid crystal display device utilizing such tablet
SEIKO EPSON CORP24 citations93
US5760885AJun 2, 1998
Light-sensing device
SEIKO EPSON CORP30 citations93
US6805448B2Oct 19, 2004
Projector display comprising light source units
SEIKO EPSON CORP35 citations92
US5767939AJun 16, 1998
Eyeglass lens
SEIKO EPSON CORP35 citations92
US10884244B2Jan 5, 2021
Display apparatus
SEIKO EPSON CORP10 citations85
US9720236B2Aug 1, 2017
Optical element, electro-optical device, and mounted display apparatus
SEIKO EPSON CORP9 citations84
USRE45556EJun 9, 2015
Display device having a connection area outside the display area
SEIKO EPSON CORP6 citations84
US7253433B2Aug 7, 2007
Organic electroluminescent device, method of manufacturing the same, and electronic apparatus
SEIKO EPSON CORP12 citations84
US6741228B1May 25, 2004
Display apparatus
SEIKO EPSON CORP18 citations84
US6541910B2Apr 1, 2003
Organic el display
SEIKO EPSON CORP15 citations84
US5623509AApr 22, 1997
Semiconductor laser and light-sensing device using the same
SEIKO EPSON CORP19 citations84
US10139630B2Nov 27, 2018
Image display device with optical systems to guide light to a pupil
SEIKO EPSON CORP6 citations83
US10025009B2Jul 17, 2018
Optical device and image display apparatus
SEIKO EPSON CORP13 citations83
US9568730B2Feb 14, 2017
Optical device including diffraction elements for diffracting light inside of a light guide, image projecting apparatus, and electronic device
SEIKO EPSON CORP9 citations83
US5270746ADec 14, 1993
Eyeglass lens
SEIKO EPSON CORP15 citations82
US6007201ADec 28, 1999
Multifocal contact lens
SEIKO EPSON CORP17 citations80
US7126652B2Oct 24, 2006
Light source device including a planar light source having a single, substantially continuous light emission area and display device incorporating the light source device
SEIKO EPSON CORP7 citations74
US6900858B2May 31, 2005
Liquid crystal projection device having a liquid crystal display element that includes an electroluminescent element
SEIKO EPSON CORP9 citations74
US6820994B2Nov 23, 2004
Lighting device, and electronic device using the same
SEIKO EPSON CORP6 citations74
US6545408B2Apr 8, 2003
Organic electroluminescent light source
SEIKO EPSON CORP11 citations74
US6243148B1Jun 5, 2001
Liquid crystal display device having a two-dimensional light emitting element array
SEIKO EPSON CORP9 citations74
US6002458ADec 14, 1999
Liquid crystal display device
SEIKO EPSON CORP9 citations74
US5673241ASep 30, 1997
Focus detection mechanism and optical head and optical storage device that use it
SEIKO EPSON CORP14 citations74
TOKYO ELECTRON LTD
3 patentsUS6215087B1Apr 10, 2001
Plasma film forming method and plasma film forming apparatus
TOKYO ELECTRON LTD57 citations95
US6355902B2Mar 12, 2002
Plasma film forming method and plasma film forming apparatus
TOKYO ELECTRON LTD23 citations92
US8029873B2Oct 4, 2011
Film deposition method and film deposition apparatus of metal film
TOKYO ELECTRON LTD7 citations84
KOBAYASHI HIDEKAZU
2 patentsISHIZAKA TADAHIRO
1 patentShowing the top 50 of 101 patents by PatentIndex Score.