Inventor · disambiguated record
Masami Ishikawa
Also filed as: ISHIKAWA MASAMI · YASUDA MASARU
40 granted patents·10 pending applications·505 citations·filing 1979–2024
97Inventor score
Top patents by PatentIndex Score
50 records- 0194US7187098B2Axial gap rotating electrical machineEQUOS RESEARCH KK·Filed 2005·Granted Mar 6, 2007·28 cites·11 claims
- 0292US6518182B1Via-filling processEBARA UDYLITE KK·Filed 2000·Granted Feb 11, 2003·40 cites·15 claims
- 0392US5333501AAbnormality monitoring apparatus for a pipelineTOKYO GAS CO LTD·Filed 1990·Granted Aug 2, 1994·100 cites·1 claims
- 0489US10871092B2Blow-by gas treatment device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2019·Granted Dec 22, 2020·3 cites·4 claims
- 0589US7084591B2Electric drive control device, electric drive control method, and program of sameEQUOS RESEARCH KK·Filed 2005·Granted Aug 1, 2006·21 cites·17 claims
- 0683US5389825ASystem of controlling changeover of an electric power source for an electric motor vehicleAISIN AW CO·Filed 1993·Granted Feb 14, 1995·92 cites·5 claims
- 0773US10202042B2Electric vehicle power conversion systemSAMSUNG SDI CO LTD·Filed 2014·Granted Feb 12, 2019·6 cites·13 claims
- 0871US12297912B2Flow rate control valveTOYOTA MOTOR CO LTD·Filed 2023·Granted May 13, 2025·0 cites·5 claims
- 0965US10012190B2Pump coverTOYOTA MOTOR CO LTD·Filed 2015·Granted Jul 3, 2018·1 cites·5 claims
- 1063US12404825B2Blow-by gas recirculation deviceTOYOTA MOTOR CO LTD·Filed 2024·Granted Sep 2, 2025·0 cites·8 claims
- 1163US5644558ARecording and/or reproducing apparatus for disc-shaped recording mediumSONY CORP·Filed 1996·Granted Jul 1, 1997·18 cites·14 claims
- 1261US12152516B2Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2022·Granted Nov 26, 2024·0 cites·7 claims
- 1361US5853331AAmusement rideBUNGEE JAPAN INC·Filed 1998·Granted Dec 29, 1998·46 cites·14 claims
- 1460US10046646B2Power conversion system for electric vehiclesSAMSUNG SDI CO LTD·Filed 2014·Granted Aug 14, 2018·2 cites·4 claims
- 1559US11598232B2PCV valve coupling structureTOYOTA BOSHOKU KK·Filed 2019·Granted Mar 7, 2023·0 cites·3 claims
- 1659US11466611B2Vehicular internal combustion engineTOYOTA MOTOR CO LTD·Filed 2020·Granted Oct 11, 2022·0 cites·6 claims
- 1759US11220940B2Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2019·Granted Jan 11, 2022·0 cites·4 claims
- 1859US11125126B2Lubricant supply apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2018·Granted Sep 21, 2021·0 cites·7 claims
- 1959US7090956B2Image forming method and image forming apparatusRICOH PRINTING SYS LTD·Filed 2001·Granted Aug 15, 2006·7 cites·10 claims
- 2058US7047116B2Electric drive control apparatus, electric drive control method and program thereforAISIN AW CO·Filed 2003·Granted May 16, 2006·15 cites·14 claims
- 2158US5978324ADisc recording/reproducing unit elastically supported on a main body of the apparatus including a lock mechanism for the elastic support deviceSONY CORP·Filed 1997·Granted Nov 2, 1999·11 cites·12 claims
- 2257US12492652B2Blow-by gas recirculation deviceTOYOTA MOTOR CO LTD·Filed 2024·Granted Dec 9, 2025·0 cites·5 claims
- 2357US11549413B1Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2022·Granted Jan 10, 2023·0 cites·6 claims
- 2456US5776659AIonizing radiation exposure method utilizing water soluble aniline antistatic polymer layerFUJITSU LTD·Filed 1996·Granted Jul 7, 1998·13 cites·8 claims
- 2555US10934906B2Blow-by gas treating deviceTOYOTA MOTOR CO LTD·Filed 2019·Granted Mar 2, 2021·0 cites·7 claims
- 2654US10989081B2Blow-by gas treatment device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2020·Granted Apr 27, 2021·0 cites·4 claims
- 2754US10526940B2Blow-by gas treatment device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2019·Granted Jan 7, 2020·0 cites·9 claims
- 2854US5969500AControl system and method for motorsAISIN AW CO·Filed 1998·Granted Oct 19, 1999·32 cites·8 claims
- 2953US11998066B2Kigurumi staging support apparatus, kigurumi staging support system, and kigurumi staging support methodTHE POKEMON COMPANY·Filed 2021·Granted Jun 4, 2024·0 cites·16 claims
- 3051US5828633ADisc recording and/or reproducing changer with disc transporting mechanism and disc detectorSONY CORP·Filed 1994·Granted Oct 27, 1998·7 cites·3 claims
- 3151US5140157ADouble beam scan type optical apparatusHITACHI KOKI KK·Filed 1991·Granted Aug 18, 1992·14 cites·6 claims
- 3250US10774706B2Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2019·Granted Sep 15, 2020·0 cites·6 claims
- 3350US2014321022A1Magnetic Levitation ApparatusSEGA DBA SEGA CORP KK·Filed 2014·Application pending·0 cites
- 3449US11834974B2Oil separator for internal combustion engineTOYOTA BOSHOKU KK·Filed 2022·Granted Dec 5, 2023·0 cites·7 claims
- 3548US5405691ACoating agentsTAKEMOTO OIL & FAT CO LTD·Filed 1994·Granted Apr 11, 1995·10 cites·5 claims
- 3648US2019186445A1Blow-by gas processing device, and engineTOYOTA MOTOR CO LTD·Filed 2018·Application pending·0 cites
- 3747US6313812B1Single remote control system for plurality of audio and visual equipmentSONY CORP·Filed 1997·Granted Nov 6, 2001·12 cites·9 claims
- 3847US5225744APower unit for electric carsAISIN AW CO·Filed 1991·Granted Jul 6, 1993·13 cites·1 claims
- 3944US2019178122A1Oil SeparatorsKOJIMA IND CORP·Filed 2018·Application pending·0 cites
- 4043US4254705APrinting magnet drive deviceHITACHI KOKI KK·Filed 1979·Granted Mar 10, 1981·5 cites·5 claims
- 4143US2012081060A1Control apparatus for driving apparatusISHIKAWA MASAMI·Filed 2011·Application pending·0 cites
- 4242US9403438B2Control device for hybrid vehicle and control method for hybrid vehicleSAMSUNG SDI CO LTD·Filed 2014·Granted Aug 2, 2016·0 cites·5 claims
- 4340US2007032294A1Game systemUEDA NORIAKI·Filed 2004·Application pending·0 cites
- 4439US2005179337A1Axial gap electric rotary machineFiled 2004·Application pending·0 cites
- 4539US2015097501A1Electric vehicle power conversion systemSAMSUNG SDI CO LTD·Filed 2014·Application pending·0 cites
- 4639US2005179336A1Axial gap electric rotary machineFiled 2004·Application pending·0 cites
- 4737US5182596ADevice for measuring surface potentials at photosensitive body and electrostatic recording apparatus using said deviceHITACHI KOKI KK·Filed 1991·Granted Jan 26, 1993·8 cites·7 claims
- 4837US2012081047A1Control device of a driving apparatusHISADA HIDEKI·Filed 2011·Application pending·0 cites
- 4937US2012081054A1Control device of a driving apparatusHISADA HIDEKI·Filed 2011·Application pending·0 cites
- 5031US5501904ACoating agentsTAKEMOTO OIL & FAT CO LTD·Filed 1994·Granted Mar 26, 1996·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →