Inventor
SUGAWARA SABURO
JP85 patents
⚠️ This page may combine multiple inventors who share the name “SUGAWARA SABURO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
37 patentsUS6094216AJul 25, 2000
Stereoscopic image display method, and stereoscopic image display apparatus using the method
CANON KK229 citations99
US5708486AJan 13, 1998
LCD having a shading layer exhibiting a different reflection characteristic from reflection electrodes
CANON KK111 citations98
US5600490AFeb 4, 1997
Zoom lens for projecting video image
CANON KK59 citations96
US5134524AJul 28, 1992
Rear focus type zoom lens
CANON KK78 citations96
US6755538B2Jun 29, 2004
Projection-type image display device
CANON KK20 citations93
US6633436B2Oct 14, 2003
Optical system, projection optical system, image projection apparatus having it, and image pickup apparatus
CANON KK21 citations93
US6601957B2Aug 5, 2003
Projection-type image displaying device
CANON KK30 citations93
US6590714B2Jul 8, 2003
Color combining optical system and projection type display apparatus having the same
CANON KK23 citations93
US6464362B1Oct 15, 2002
Illuminating apparatus
CANON KK38 citations93
US6431727B1Aug 13, 2002
Illumination device for selectively compressing light from light sources and projection type display apparatus
CANON KK35 citations93
US6414791B1Jul 2, 2002
Optical system for photographing a stereoscopic image, zoom lens and image pickup optical system
CANON KK51 citations93
US6363225B1Mar 26, 2002
Optical system for shooting a three-dimensional image and three-dimensional image shooting apparatus using the optical system
CANON KK21 citations93
US6344929B1Feb 5, 2002
Illumination apparatus and projection type display apparatus
CANON KK21 citations93
US6285509B1Sep 4, 2001
Zoom lens and display apparatus having the same
CANON KK46 citations93
US6246170B1Jun 12, 2001
Light source apparatus with a spherical optical member
CANON KK20 citations93
US6231193B1May 15, 2001
Light source device, illuminating system and image projecting apparatus
CANON KK50 citations93
US6226122B1May 1, 2001
Observation optical system and optical apparatus having the same
CANON KK31 citations93
US6084719AJul 4, 2000
Projection lens
CANON KK29 citations93
US5986806ANov 16, 1999
Decentered optical system
CANON KK47 citations93
US5969875AOct 19, 1999
Projecting optical system
CANON KK25 citations93
US5969873AOct 19, 1999
Eyepiece lens with image located in space between first and second lens units
CANON KK19 citations93
US5684635ANov 4, 1997
Eyepiece lens of wide visual field
CANON KK26 citations93
US5552938ASep 3, 1996
Projection device for projecting an original image onto a screen
CANON KK21 citations93
US5550679AAug 27, 1996
Projection lens apparatus having a plurality of lens groups to perform zooming
CANON KK38 citations93
US5341243AAug 23, 1994
Zoom lens of rear focus type
CANON KK37 citations93
US5257134AOct 26, 1993
Zoom lens
CANON KK25 citations93
US5247393ASep 21, 1993
Zoom lens
CANON KK21 citations93
US6632004B2Oct 14, 2003
Lighting device
CANON KK30 citations92
US6188529B1Feb 13, 2001
Projecting apparatus for a high-resolution color liquid crystal projector
CANON KK17 citations92
US6176585B1Jan 23, 2001
Projection apparatus
CANON KK23 citations92
US5737113AApr 7, 1998
Optical modulators and color image display device employing the same
CANON KK38 citations92
US6942347B2Sep 13, 2005
Color combining optical system, image projection optical system, and projection type image display apparatus
CANON KK17 citations84
US6751020B2Jun 15, 2004
Stereoscopic image pickup system
CANON KK14 citations84
US6686988B1Feb 3, 2004
Optical system, and stereoscopic image photographing apparatus having the same
CANON KK14 citations84
US5781349AJul 14, 1998
Zoom lens
CANON KK19 citations84
US5701475ADec 23, 1997
Eyepiece lens
CANON KK18 citations84
US5303088AApr 12, 1994
Retrofocus type lens
CANON KK19 citations82
ASAHI OPTICAL CO LTD
13 patentsUS4944030AJul 24, 1990
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD124 citations99
US5160192ANov 3, 1992
Illuminating instrument
ASAHI OPTICAL CO LTD53 citations96
US4936664AJun 26, 1990
Zoom lens drive system for camera
ASAHI OPTICAL CO LTD70 citations96
US4771308ASep 13, 1988
Auxiliary light projecting apparatus for a focus detecting system
ASAHI OPTICAL CO LTD94 citations96
US5052787AOct 1, 1991
Zoom finder
ASAHI OPTICAL CO LTD23 citations93
US4833497AMay 23, 1989
Apparatus for adjusting focus in the macro-photographing mode of an automatic focus camera
ASAHI OPTICAL CO LTD32 citations93
US4534636AAug 13, 1985
Automatic focusing device for camera
ASAHI OPTICAL CO LTD33 citations93
US5157429AOct 20, 1992
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD25 citations92
US5137350AAug 11, 1992
Distance measuring device
ASAHI OPTICAL CO LTD31 citations92
US5081545AJan 14, 1992
Focusing screen
ASAHI OPTICAL CO LTD30 citations92
US5673099ASep 30, 1997
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD9 citations82
US5475456ADec 12, 1995
Zoom lens drive system for lens shutter type of camera
ASAHI OPTICAL CO LTD18 citations82
US5162831ANov 10, 1992
Zoom lens drive system for camera
ASAHI OPTICAL CO LTD21 citations82
Showing the top 50 of 85 patents by PatentIndex Score.