Inventor · disambiguated record
Kohtaro Hayashi
Also filed as: HAYASHI KOHTARO
70 granted patents·5 pending applications·1,620 citations·filing 1979–2014
99Inventor score
Top patents by PatentIndex Score
75 records- 0198US7469396B2Semiconductor device and layout design method thereforPANASONIC CORP·Filed 2005·Granted Dec 23, 2008·123 cites·18 claims
- 0297US6535256B1Color liquid crystal display deviceMINOLTA CO LTD·Filed 1999·Granted Mar 18, 2003·83 cites·29 claims
- 0397US6343862B1Projecting image display deviceMINOLTA CO LTD·Filed 1999·Granted Feb 5, 2002·87 cites·45 claims
- 0496US6540361B1Display optical apparatusMINOLTA CO LTD·Filed 2000·Granted Apr 1, 2003·61 cites·28 claims
- 0592US6624862B1Display optical apparatus having a rotary compensator to improve display contrastMINOLTA CO LTD·Filed 2000·Granted Sep 23, 2003·54 cites·21 claims
- 0692US6624952B2Projection optical systemMINOLTA CO LTD·Filed 2002·Granted Sep 23, 2003·61 cites·25 claims
- 0790US6347014B1Illumination optical system and projection-type image display apparatusMINOLTA CO LTD·Filed 1999·Granted Feb 12, 2002·31 cites·17 claims
- 0890US6278552B1Polarization separation device and projection-type display apparatusMINOLTA CO LTD·Filed 2000·Granted Aug 21, 2001·46 cites·19 claims
- 0989US5255030ACameraMINOLTA CAMERA KK·Filed 1991·Granted Oct 19, 1993·32 cites·27 claims
- 1088US8425044B2Projection optical systemYAMADA KEIKO·Filed 2008·Granted Apr 23, 2013·12 cites·28 claims
- 1188US8113667B2Projection optical systemYAMADA KEIKO·Filed 2008·Granted Feb 14, 2012·13 cites·26 claims
- 1288US7524068B2Projection optical systemKONICA MINOLTA OPTO INC·Filed 2006·Granted Apr 28, 2009·12 cites·27 claims
- 1387US6176586B1Projection display apparatusMINOLTA CO LTD·Filed 1999·Granted Jan 23, 2001·99 cites·39 claims
- 1487US6116739AColor projection display apparatusMINOLTA CO LTD·Filed 1999·Granted Sep 12, 2000·89 cites·23 claims
- 1585US6304381B1Illumination optical apparatusMINOLTA CO LTD·Filed 2000·Granted Oct 16, 2001·31 cites·14 claims
- 1685US6226459B1Apparatus having a driven member and a drive controller thereforMINOLTA CO LTD·Filed 2000·Granted May 1, 2001·32 cites·12 claims
- 1784US6285502B1Zoom lens system having an image blur compensation functionMINOLTA CO LTD·Filed 2000·Granted Sep 4, 2001·25 cites·14 claims
- 1883US5023649AExposure controlling apparatus of a camera having a plurality of areas for measuring brightnessMINOLTA CAMERA KK·Filed 1989·Granted Jun 11, 1991·20 cites·34 claims
- 1982US5363163AFinder optical system for pseudo focal lengthMINOLTA CAMERA KK·Filed 1992·Granted Nov 8, 1994·22 cites·11 claims
- 2082US5170204ADisplay system for displaying information in the viewfinder of a cameraMINOLTA CAMERA KK·Filed 1991·Granted Dec 8, 1992·21 cites·4 claims
- 2182US5019854ADisplay system for displaying information in the viewfinder of a cameraMINOLTA CAMERA KK·Filed 1989·Granted May 28, 1991·18 cites·20 claims
- 2281US5196877AViewfinder framing device for zoom lens cameraMINOLTA CAMERA KK·Filed 1992·Granted Mar 23, 1993·20 cites·16 claims
- 2380US8696133B2Projection optical system and image projecting deviceIMAOKA MASAYUKI·Filed 2009·Granted Apr 15, 2014·13 cites·25 claims
- 2479US6457828B1Display optical apparatusMINOLTA CO LTD·Filed 2000·Granted Oct 1, 2002·18 cites·9 claims
- 2576US5359385ACamera having learning functionMINOLTA CAMERA KK·Filed 1993·Granted Oct 25, 1994·17 cites·37 claims
- 2676US5258799AAuto focus camera with pseudo focal length modeMINOLTA CAMERA KK·Filed 1992·Granted Nov 2, 1993·17 cites·6 claims
- 2772US6789902B2Projection optical system and projector using the sameMINOLTA CO LTD·Filed 2003·Granted Sep 14, 2004·15 cites·24 claims
- 2872US6266189B1Zoom lens system having an image blur compensating functionMINOLTA CO LTD·Filed 1997·Granted Jul 24, 2001·32 cites·23 claims
- 2972US5144359AAperture value determining device for a flash systemMINOLTA CAMERA KK·Filed 1991·Granted Sep 1, 1992·15 cites·5 claims
- 3072US4977424ALight measuring device for cameraMINOLTA CAMERA KK·Filed 1988·Granted Dec 11, 1990·12 cites·12 claims
- 3171US7854515B2Projection type image display apparatusKONICA MINOLTA OPTO INC·Filed 2006·Granted Dec 21, 2010·3 cites·19 claims
- 3271US7075615B2Light separation device, blazed grating device, diffraction grating device, and illumination optical systemMINOLTA CO LTD·Filed 2004·Granted Jul 11, 2006·9 cites·7 claims
- 3371US6231192B1Projecting optical systemMINOLTA CO LTD·Filed 1999·Granted May 15, 2001·38 cites·18 claims
- 3469US8319257B2Semiconductor device and layout design method thereforHAYASHI KOHTARO·Filed 2008·Granted Nov 27, 2012·5 cites·5 claims
- 3568US6880937B2Projection optical system and image projection apparatusKONICA MINOLTA OPTO INC·Filed 2003·Granted Apr 19, 2005·7 cites·46 claims
- 3668US6512633B2Optical system for compensation of image shakeMINOLTA CO LTD·Filed 1997·Granted Jan 28, 2003·30 cites·12 claims
- 3768US6193376B1Display apparatusMINOLTA CO LTD·Filed 1999·Granted Feb 27, 2001·34 cites·38 claims
- 3867US6791750B2Polarization beam splitterMINOLTA CO LTD·Filed 2002·Granted Sep 14, 2004·11 cites·10 claims
- 3965US5572361ABinocular system with automatic diopter power adjustmentMINOLTA CAMERA KK·Filed 1992·Granted Nov 5, 1996·28 cites·8 claims
- 4064US5387999ACamera shake compensating optical systemMINOLTA CO LTD·Filed 1993·Granted Feb 7, 1995·26 cites·7 claims
- 4163US7012758B2Projection optical system and projecting apparatus provided with sameKONICA MINOLTA OPTO INC·Filed 2005·Granted Mar 14, 2006·3 cites·28 claims
- 4262US5086353AVariable magnification viewfinder optical systemMINOLTA CAMERA KK·Filed 1990·Granted Feb 4, 1992·28 cites·18 claims
- 4361US6407771B1Camera having an image shift detecting functionMINOLTA CO LTD·Filed 1995·Granted Jun 18, 2002·26 cites·11 claims
- 4461US5051769AFlash systemMINOLTA CAMERA KK·Filed 1989·Granted Sep 24, 1991·8 cites·2 claims
- 4560US5815742AApparatus having a driven member and a drive controller thereforMINOLTA CO LTD·Filed 1997·Granted Sep 29, 1998·20 cites·13 claims
- 4659US5627622ATrimming cameraMINOLTA CAMERA KK·Filed 1995·Granted May 6, 1997·6 cites·4 claims
- 4759US5194886AFinder optical systemMINOLTA CAMERA KK·Filed 1991·Granted Mar 16, 1993·20 cites·17 claims
- 4858US7286290B2Optical illumination apparatusMINOLTA CO LTD·Filed 2004·Granted Oct 23, 2007·4 cites·19 claims
- 4955US6085039AApparatus having a driven member and a drive controller thereforMINOLTA CO LTD·Filed 1998·Granted Jul 4, 2000·16 cites·32 claims
- 5052US6002519ATaking optical system having a hand-shake correction functionMINOLTA CO LTD·Filed 1997·Granted Dec 14, 1999·15 cites·32 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →