Inventor · disambiguated record
Saburo Sugawara
Also filed as: NAKAMURA SUSAO · SUGAWARA SABURO
85 granted patents·1 pending application·2,259 citations·filing 1983–2016
99Inventor score
Top patents by PatentIndex Score
86 records- 0198US4944030ALens shutter camera including zoom lensASAHI OPTICAL CO LTD·Filed 1987·Granted Jul 24, 1990·124 cites·111 claims
- 0297US4936664AZoom lens drive system for cameraASAHI OPTICAL CO LTD·Filed 1987·Granted Jun 26, 1990·70 cites·165 claims
- 0395US6094216AStereoscopic image display method, and stereoscopic image display apparatus using the methodCANON KK·Filed 1996·Granted Jul 25, 2000·229 cites·44 claims
- 0495US5160192AIlluminating instrumentASAHI OPTICAL CO LTD·Filed 1991·Granted Nov 3, 1992·53 cites·23 claims
- 0594US6414791B1Optical system for photographing a stereoscopic image, zoom lens and image pickup optical systemCANON KK·Filed 1999·Granted Jul 2, 2002·51 cites·12 claims
- 0694US4771308AAuxiliary light projecting apparatus for a focus detecting systemASAHI OPTICAL CO LTD·Filed 1987·Granted Sep 13, 1988·94 cites·35 claims
- 0792US6464362B1Illuminating apparatusCANON KK·Filed 1999·Granted Oct 15, 2002·38 cites·52 claims
- 0891US5708486ALCD having a shading layer exhibiting a different reflection characteristic from reflection electrodesCANON KK·Filed 1996·Granted Jan 13, 1998·111 cites·14 claims
- 0987US5157429ALens shutter camera including zoom lensASAHI OPTICAL CO LTD·Filed 1990·Granted Oct 20, 1992·25 cites·24 claims
- 1087US5134524ARear focus type zoom lensCANON KK·Filed 1990·Granted Jul 28, 1992·78 cites·11 claims
- 1186US5142315ALens shutter type of camera including zoom lensASAHI OPTICAL CO LTD·Filed 1990·Granted Aug 25, 1992·17 cites·19 claims
- 1285US6755538B2Projection-type image display deviceCANON KK·Filed 2003·Granted Jun 29, 2004·20 cites·27 claims
- 1385US6601957B2Projection-type image displaying deviceCANON KK·Filed 2002·Granted Aug 5, 2003·30 cites·23 claims
- 1483US5600490AZoom lens for projecting video imageCANON KK·Filed 1994·Granted Feb 4, 1997·59 cites·29 claims
- 1581US6590714B2Color combining optical system and projection type display apparatus having the sameCANON KK·Filed 2001·Granted Jul 8, 2003·23 cites·26 claims
- 1681US6363225B1Optical system for shooting a three-dimensional image and three-dimensional image shooting apparatus using the optical systemCANON KK·Filed 2000·Granted Mar 26, 2002·21 cites·11 claims
- 1781US6344929B1Illumination apparatus and projection type display apparatusCANON KK·Filed 2000·Granted Feb 5, 2002·21 cites·44 claims
- 1881US5136427AOptical system for use with a viewfinderASAHI KOGAKU KK·Filed 1990·Granted Aug 4, 1992·21 cites·25 claims
- 1980US6633436B2Optical system, projection optical system, image projection apparatus having it, and image pickup apparatusCANON KK·Filed 2001·Granted Oct 14, 2003·21 cites·40 claims
- 2079US10216071B2Optical system and optical apparatus including the sameCANON KK·Filed 2016·Granted Feb 26, 2019·2 cites·17 claims
- 2179US6942347B2Color combining optical system, image projection optical system, and projection type image display apparatusCANON KK·Filed 2001·Granted Sep 13, 2005·17 cites·24 claims
- 2279US6632004B2Lighting deviceCANON KK·Filed 2001·Granted Oct 14, 2003·30 cites·22 claims
- 2379US6231193B1Light source device, illuminating system and image projecting apparatusCANON KK·Filed 1998·Granted May 15, 2001·50 cites·59 claims
- 2479US4534636AAutomatic focusing device for cameraASAHI OPTICAL CO LTD·Filed 1984·Granted Aug 13, 1985·33 cites·7 claims
- 2578US5986806ADecentered optical systemCANON KK·Filed 1997·Granted Nov 16, 1999·47 cites·19 claims
- 2678US5897227AZoom lens drive system for lens shutter type of cameraASAHI OPTICAL CO LTD·Filed 1997·Granted Apr 27, 1999·10 cites·19 claims
- 2777US6285509B1Zoom lens and display apparatus having the sameCANON KK·Filed 1999·Granted Sep 4, 2001·46 cites·47 claims
- 2877US5673099ALens shutter camera including zoom lensASAHI OPTICAL CO LTD·Filed 1995·Granted Sep 30, 1997·9 cites·29 claims
- 2977US4527881APhotometric deviceASAHI OPTICAL CO LTD·Filed 1984·Granted Jul 9, 1985·12 cites·4 claims
- 3075US6751020B2Stereoscopic image pickup systemCANON KK·Filed 2001·Granted Jun 15, 2004·14 cites·21 claims
- 3175US5280317ALens shutter camera including zoom lens drive systemASAHI OPTICAL CO LTD·Filed 1992·Granted Jan 18, 1994·16 cites·19 claims
- 3274US5550679AProjection lens apparatus having a plurality of lens groups to perform zoomingCANON KK·Filed 1994·Granted Aug 27, 1996·38 cites·18 claims
- 3373US5341243AZoom lens of rear focus typeCANON KK·Filed 1992·Granted Aug 23, 1994·37 cites·9 claims
- 3473US4833497AApparatus for adjusting focus in the macro-photographing mode of an automatic focus cameraASAHI OPTICAL CO LTD·Filed 1988·Granted May 23, 1989·32 cites·31 claims
- 3572US6686988B1Optical system, and stereoscopic image photographing apparatus having the sameCANON KK·Filed 2000·Granted Feb 3, 2004·14 cites·30 claims
- 3672US6226122B1Observation optical system and optical apparatus having the sameCANON KK·Filed 1998·Granted May 1, 2001·31 cites·16 claims
- 3771US5081545AFocusing screenASAHI OPTICAL CO LTD·Filed 1991·Granted Jan 14, 1992·30 cites·16 claims
- 3870US6431727B1Illumination device for selectively compressing light from light sources and projection type display apparatusCANON KK·Filed 1999·Granted Aug 13, 2002·35 cites·42 claims
- 3969US5684635AEyepiece lens of wide visual fieldCANON KK·Filed 1994·Granted Nov 4, 1997·26 cites·15 claims
- 4068US6246170B1Light source apparatus with a spherical optical memberCANON KK·Filed 1998·Granted Jun 12, 2001·20 cites·23 claims
- 4168US5737113AOptical modulators and color image display device employing the sameCANON KK·Filed 1996·Granted Apr 7, 1998·38 cites·56 claims
- 4267US8573788B2Image projecting apparatus having an optical element shiftable in a direction having a component perpendicular to an optical axisSUGAWARA SABURO·Filed 2010·Granted Nov 5, 2013·3 cites·8 claims
- 4367US5264885ALens shutter camera including zoom lensASAHI OPTICAL CO LTD·Filed 1990·Granted Nov 23, 1993·10 cites·20 claims
- 4466US6634755B1Illuminating device and projectorCANON KK·Filed 2000·Granted Oct 21, 2003·9 cites·23 claims
- 4566US6476983B2Eyepiece lens, objective lens, and optical apparatus having themCANON KK·Filed 2000·Granted Nov 5, 2002·8 cites·16 claims
- 4666US6084719AProjection lensCANON KK·Filed 1998·Granted Jul 4, 2000·29 cites·19 claims
- 4766US4946252AFocusing screenASAHI OPTICAL CO LTD·Filed 1988·Granted Aug 7, 1990·9 cites·7 claims
- 4865US5276475ALens shutter camera including zoom lensASAHI OPTICAL CO LTD·Filed 1992·Granted Jan 4, 1994·9 cites·2 claims
- 4964US7826147B2Zoom lens and image projection apparatusCANON KK·Filed 2009·Granted Nov 2, 2010·3 cites·9 claims
- 5063US5969875AProjecting optical systemCANON KK·Filed 1997·Granted Oct 19, 1999·25 cites·22 claims
Showing the top 50 of 86 patent records by PatentIndex Score.
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