Inventor · disambiguated record
Toshiharu Murai
Also filed as: MURAI TOSHIHARU
42 granted patents·4 pending applications·486 citations·filing 1983–2020
98Inventor score
Top patents by PatentIndex Score
46 records- 0194US4595948AMulticolor ink jet recording apparatus having means for preventing blurring of inkRICOH KK·Filed 1983·Granted Jun 17, 1986·84 cites·8 claims
- 0291US7857458B2Image display device and image projection deviceRICOH CO LTD·Filed 2005·Granted Dec 28, 2010·11 cites·12 claims
- 0390US9155161B2Light source device and projection device including the light source deviceMURAI TOSHIHARU·Filed 2013·Granted Oct 6, 2015·9 cites·11 claims
- 0490US4604631AControl system and method for charge control ink jet printerRICOH KK·Filed 1984·Granted Aug 5, 1986·47 cites·11 claims
- 0589US9544554B2Light source device, and image projection apparatus employing light source deviceMURAI TOSHIHARU·Filed 2014·Granted Jan 10, 2017·10 cites·19 claims
- 0688US10073333B2Light irradiation device, and image display equipped with the same, for emitting light of two or more components by laser lightNISHIMORI TAKEHIRO·Filed 2016·Granted Sep 11, 2018·5 cites·15 claims
- 0787US9400416B2Illumination light source device including a reflecting-transmitting element, projection device including the illumination light source device and method to control the projection deviceTAKAHASHI TATSUYA·Filed 2013·Granted Jul 26, 2016·10 cites·13 claims
- 0887US4626874ALiquid level detector for ink jet printerRICOH KK·Filed 1985·Granted Dec 2, 1986·44 cites·10 claims
- 0985US9442352B2Light source device including passage forming member and image projecting apparatus having the sameNISHIMORI TAKEHIRO·Filed 2014·Granted Sep 13, 2016·6 cites·14 claims
- 1084US9348200B2Light source unit and projector incorporating the sameTAKAHASHI TATSUYA·Filed 2014·Granted May 24, 2016·5 cites·12 claims
- 1184US5729024AOriginal edge detecting system and optical sensorRICOH KK·Filed 1996·Granted Mar 17, 1998·29 cites·7 claims
- 1284US4598299ADeflection control ink jet printing apparatusRICOH KK·Filed 1983·Granted Jul 1, 1986·32 cites·11 claims
- 1383US5818062AOriginal edge detecting system and optical sensor using distance detecting light-receiving meansRICOH KK·Filed 1997·Granted Oct 6, 1998·26 cites·8 claims
- 1481US9863759B2Illumination apparatus, pattern irradiation device, and systemTAKAHASHI TATSUYA·Filed 2015·Granted Jan 9, 2018·4 cites·20 claims
- 1581US9594296B2Illumination device including a wavelength converterFUJITA KAZUHIRO·Filed 2013·Granted Mar 14, 2017·7 cites·11 claims
- 1681US9131165B2Illumination light source system, projector having the same, and method of controlling projectorTAKAHASHI TATSUYA·Filed 2013·Granted Sep 8, 2015·5 cites·22 claims
- 1778US7787001B2Image processing apparatus, image display apparatus, image processing method, and computer productRICOH KK·Filed 2006·Granted Aug 31, 2010·4 cites·7 claims
- 1877US9250504B2Light source unit and image projection apparatus including light source unitNISHIMORI TAKEHIRO·Filed 2014·Granted Feb 2, 2016·3 cites·8 claims
- 1977US4642653AMulti-tone recording method for ink jet printerRICOH KK·Filed 1986·Granted Feb 10, 1987·32 cites·3 claims
- 2073US5929436AOptical sensor including a first and second converging optical system for edge detectionRICOH KK·Filed 1997·Granted Jul 27, 1999·17 cites·3 claims
- 2172US9726966B2Light source device and projector using the sameMAEDA IKUO·Filed 2013·Granted Aug 8, 2017·1 cites·7 claims
- 2272US7733317B2Image display apparatus and alternative current drive methodRICOH KK·Filed 2005·Granted Jun 8, 2010·2 cites·1 claims
- 2370US11402737B2Light source device and projector including a phosphor and a color-changing sectionRICOH CO LTD·Filed 2020·Granted Aug 2, 2022·0 cites·12 claims
- 2470US4903016ACommunication control unitRICOH KK·Filed 1988·Granted Feb 20, 1990·37 cites·16 claims
- 2568US10175567B2Light source device including a magnetic or capacitance detecting sensor and an image projection apparatus including the light source deviceNISHIMORI TAKEHIRO·Filed 2016·Granted Jan 8, 2019·1 cites·13 claims
- 2665US9022577B2Light source device and projection display apparatusMURAI TOSHIHARU·Filed 2012·Granted May 5, 2015·1 cites·13 claims
- 2765US8223171B2Image processing apparatus and image display apparatusNAMIE KENJI·Filed 2007·Granted Jul 17, 2012·2 cites·5 claims
- 2863US10627711B2Light source device that emits a plurality of color lights including a fluorescent light, and projector using the sameMAEDA IKUO·Filed 2018·Granted Apr 21, 2020·0 cites·11 claims
- 2963US9279566B2Light deflector, light source device, image projecting device, and display deviceNISHIMORI TAKEHIRO·Filed 2013·Granted Mar 8, 2016·1 cites·11 claims
- 3062US9880454B2Light source device and projector using the sameTAKAHASHI TATSUYA·Filed 2014·Granted Jan 30, 2018·1 cites·16 claims
- 3162US9223194B2Illumination light beam forming device, illumination light source device and image display deviceFUJITA KAZUHIRO·Filed 2013·Granted Dec 29, 2015·1 cites·17 claims
- 3262US9121570B2Illumination light generation apparatusNISHIMORI TAKEHIRO·Filed 2013·Granted Sep 1, 2015·1 cites·11 claims
- 3361US10191361B2Light source device including a light source section to adjust brightness and projector using the sameMAEDA IKUO·Filed 2017·Granted Jan 29, 2019·0 cites·2 claims
- 3460US7495831B2Optical device, display device, and three-dimension image display device for changing a polarization state of a light beam in timeRICOH KK·Filed 2005·Granted Feb 24, 2009·2 cites·34 claims
- 3559US7551805B2Converting the resolution of an image using interpolation and displaying the converted imageRICOH KK·Filed 2005·Granted Jun 23, 2009·2 cites·42 claims
- 3653US2016320692A1Illumination light source device including a reflecting-transmitting element, projection device including the illumination light source device and method to control the projection deviceTAKAHASHI TATSUYA·Filed 2016·Application pending·0 cites
- 3752US9746755B2Light source device and image projector including the sameNISHIMORI TAKEHIRO·Filed 2015·Granted Aug 29, 2017·0 cites·16 claims
- 3850US5905933ADocument detecting apparatusRICOH KK·Filed 1997·Granted May 18, 1999·9 cites·13 claims
- 3949US9557631B2Light source unit and image projection apparatus including light source unitNISHIMORI TAKEHIRO·Filed 2014·Granted Jan 31, 2017·0 cites·12 claims
- 4049US5267238ANetwork interface units and communication system using network interface unitRICOH KK·Filed 1991·Granted Nov 30, 1993·22 cites·30 claims
- 4149US2015131062A1Light source apparatus and image projection apparatusNISHIMORI TAKEHIRO·Filed 2014·Application pending·0 cites
- 4247US5175730ACommunication control unitRICOH KK·Filed 1989·Granted Dec 29, 1992·13 cites·11 claims
- 4346US2013308104A1Light source apparatus and image projection apparatusNISHIMORI TAKEHIRO·Filed 2013·Application pending·0 cites
- 4444US7564508B2Light path shift device and image display deviceRICOH KK·Filed 2006·Granted Jul 21, 2009·0 cites·7 claims
- 4542US2012044465A1Light source unit, illumination device, and projection display apparatusMURAI TOSHIHARU·Filed 2011·Application pending·0 cites
- 4630US6310965B2Manuscript document detecting system and methodRICOH KK·Filed 1998·Granted Oct 30, 2001·0 cites·26 claims
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