Inventor · disambiguated record
Ikuo Maeda
Also filed as: MAEDA IKUO · SHIBATA ISAMU
44 granted patents·1 pending application·519 citations·filing 1978–2020
98Inventor score
Top patents by PatentIndex Score
45 records- 0196US7995275B2Polarization conversion element, polarization conversion optical system and image projecting apparatusRICOH CO LTD·Filed 2006·Granted Aug 9, 2011·62 cites·1 claims
- 0294US8974064B2Light source apparatus and image projection apparatusMAEDA IKUO·Filed 2012·Granted Mar 10, 2015·10 cites·9 claims
- 0393USD498716SBumper of motor vehicleMAZDA MOTOR·Filed 2003·Granted Nov 23, 2004·52 cites·1 claims
- 0487US9400416B2Illumination 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
- 0584US9348200B2Light source unit and projector incorporating the sameTAKAHASHI TATSUYA·Filed 2014·Granted May 24, 2016·5 cites·12 claims
- 0681US9594296B2Illumination device including a wavelength converterFUJITA KAZUHIRO·Filed 2013·Granted Mar 14, 2017·7 cites·11 claims
- 0781US9131165B2Illumination light source system, projector having the same, and method of controlling projectorTAKAHASHI TATSUYA·Filed 2013·Granted Sep 8, 2015·5 cites·22 claims
- 0881USD448329SRadiator grill of motor vehicleMAZDA MOTOR·Filed 2000·Granted Sep 25, 2001·28 cites·1 claims
- 0981US5105410AMulti-beam optical pick-upRICOH KK·Filed 1988·Granted Apr 14, 1992·27 cites·25 claims
- 1081US4173402AOptoelectronic sensing apparatusRICOH KK·Filed 1978·Granted Nov 6, 1979·35 cites·10 claims
- 1180US8760558B2Compound lens imaging deviceMORITA NOBUHIRO·Filed 2010·Granted Jun 24, 2014·5 cites·8 claims
- 1278US5315431AOptical isolatorFUJI ELECTROCHEMICAL CO LTD·Filed 1992·Granted May 24, 1994·54 cites·5 claims
- 1378US4776683AOptical imaging deviceRICOH KK·Filed 1986·Granted Oct 11, 1988·22 cites·16 claims
- 1477US9250504B2Light source unit and image projection apparatus including light source unitNISHIMORI TAKEHIRO·Filed 2014·Granted Feb 2, 2016·3 cites·8 claims
- 1572US9726966B2Light source device and projector using the sameMAEDA IKUO·Filed 2013·Granted Aug 8, 2017·1 cites·7 claims
- 1672US6177667B1Imaging deviceRICOH KK·Filed 1998·Granted Jan 23, 2001·40 cites·16 claims
- 1770US11402737B2Light source device and projector including a phosphor and a color-changing sectionRICOH CO LTD·Filed 2020·Granted Aug 2, 2022·0 cites·12 claims
- 1869USRE49040ELight source apparatus and image projection apparatusRICOH CO LTD·Filed 2019·Granted Apr 19, 2022·0 cites·17 claims
- 1966US5907438AImaging deviceRICOH KK·Filed 1997·Granted May 25, 1999·31 cites·13 claims
- 2064US8432595B2Scanning image displayer, mobile phone, mobile information processor, and mobile imagerMAEDA IKUO·Filed 2010·Granted Apr 30, 2013·1 cites·5 claims
- 2163US10627711B2Light 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
- 2263US9279566B2Light deflector, light source device, image projecting device, and display deviceNISHIMORI TAKEHIRO·Filed 2013·Granted Mar 8, 2016·1 cites·11 claims
- 2362USRE47778ELight source apparatus and image projection apparatusRICOH CO LTD·Filed 2017·Granted Dec 24, 2019·0 cites·25 claims
- 2462US9223194B2Illumination light beam forming device, illumination light source device and image display deviceFUJITA KAZUHIRO·Filed 2013·Granted Dec 29, 2015·1 cites·17 claims
- 2562US9121570B2Illumination light generation apparatusNISHIMORI TAKEHIRO·Filed 2013·Granted Sep 1, 2015·1 cites·11 claims
- 2661US10191361B2Light 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
- 2759USRE46622ELight source apparatus and image projection apparatusRICOH CO LTD·Filed 2016·Granted Dec 5, 2017·0 cites·9 claims
- 2859US8529072B2Image projecting device and a prism with a curved reflection surfaceMAEDA IKUO·Filed 2009·Granted Sep 10, 2013·2 cites·15 claims
- 2959US7961392B2Polarization beam splitter and polarization conversion elementRICOH CO LTD·Filed 2007·Granted Jun 14, 2011·4 cites·15 claims
- 3058US5144617AOptical information read/write apparatusRICOH KK·Filed 1990·Granted Sep 1, 1992·12 cites·9 claims
- 3157US4622640APower load survey apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Nov 11, 1986·15 cites·5 claims
- 3256USD588506SBumper of motor vehicleMAZDA MOTOR·Filed 2008·Granted Mar 17, 2009·10 cites·1 claims
- 3356US6870675B2Variable optical attenuatorFDK CORP·Filed 2002·Granted Mar 22, 2005·6 cites·5 claims
- 3452US6181473B1Image device for forming an erected imageRICOH KK·Filed 1998·Granted Jan 30, 2001·16 cites·17 claims
- 3549US9557631B2Light source unit and image projection apparatus including light source unitNISHIMORI TAKEHIRO·Filed 2014·Granted Jan 31, 2017·0 cites·12 claims
- 3648US6798566B2Variable optical gain equalizer and variable branching ratio beam splitterFDK CORP·Filed 2002·Granted Sep 28, 2004·3 cites·30 claims
- 3748US5500945AApparatus and method for controlling a system bus of a multiprocessor systemFUJITSU LTD·Filed 1995·Granted Mar 19, 1996·21 cites·6 claims
- 3846US2013308104A1Light source apparatus and image projection apparatusNISHIMORI TAKEHIRO·Filed 2013·Application pending·0 cites
- 3944US4912448ACoil device with coil and lead terminalsMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Mar 27, 1990·6 cites·3 claims
- 4043USD471138SSteering wheel for motor vehicleMAZDA MOTOR·Filed 2002·Granted Mar 4, 2003·6 cites·1 claims
- 4143US4914643AOverwriting photomagnetic recording apparatus having single light source and fixed-field generatorRICOH KK·Filed 1987·Granted Apr 3, 1990·5 cites·8 claims
- 4242US11657985B2Operation switch unit, remote operation terminal and operation systemIDEC CORP·Filed 2018·Granted May 23, 2023·0 cites·12 claims
- 4339US5341355AMultibeam optical pickup and servo method thereofRICOH KK·Filed 1989·Granted Aug 23, 1994·4 cites·15 claims
- 4435US6155722ATwin-core ferrule structure for an optical connectorTOTOKU ELECTRIC·Filed 1999·Granted Dec 5, 2000·6 cites·6 claims
- 4531USD446491SFront portion of motor vehicleMAZDA MOTOR·Filed 2000·Granted Aug 14, 2001·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →