Inventor · disambiguated record
Kouji Yamaguchi
Also filed as: YAMAGUCHI KOUJI
52 granted patents·12 pending applications·734 citations·filing 1984–2025
98Inventor score
Files withHONDA MOTOR CO LTD31MURATA MANUFACTURING CO7MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6MITSUBISHI ELECTRIC CORP3EMA KIYOMI2
Top patents by PatentIndex Score
64 records- 0196US4787353AThrottle valve control apparatus for an internal combustion engine mounted on a vehicleHONDA MOTOR CO LTD·Filed 1987·Granted Nov 29, 1988·62 cites·4 claims
- 0293US4881428AThrottle valve control apparatus for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Nov 21, 1989·48 cites·4 claims
- 0391US7803734B2Metal catalyst and method for production thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Sep 28, 2010·13 cites·12 claims
- 0491US5040114AMethod of controlling continuously variable transmission in combination with engine throttle controlHONDA MOTOR CO LTD·Filed 1989·Granted Aug 13, 1991·46 cites·15 claims
- 0591US4781162AThrottle valve control system for an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Nov 1, 1988·36 cites·8 claims
- 0690US4765296AThrottle valve control for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Aug 23, 1988·40 cites·5 claims
- 0788US7885038B2Magnetic head sliderHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Feb 8, 2011·8 cites·13 claims
- 0888US4860708AThrottle control system for automotive internal combustion engineHONDA MOTOR CO LTD·Filed 1988·Granted Aug 29, 1989·34 cites·7 claims
- 0986US10060645B2Indoor unit of air-conditioning apparatus and air-conditioning apparatus including the indoor unitMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Aug 28, 2018·4 cites·12 claims
- 1084US4799467AThrottle valve control system for an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Jan 24, 1989·27 cites·7 claims
- 1183US7915190B2Metal catalyst and method for production thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 2010·Granted Mar 29, 2011·3 cites·6 claims
- 1282US10274219B2Indoor unit for air-conditioning apparatusMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Apr 30, 2019·3 cites·7 claims
- 1379US7243703B2Flexible heat exchangerUBE INDUSTRIES·Filed 2003·Granted Jul 17, 2007·19 cites·5 claims
- 1479US4791902AThrottle valve control system for an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Dec 20, 1988·23 cites·6 claims
- 1579US4637293ASlant plate type hydraulic deviceHONDA MOTOR CO LTD·Filed 1985·Granted Jan 20, 1987·28 cites·11 claims
- 1677US9129149B2Information processing apparatus, method, and programKAMEYAMA HIROKAZU·Filed 2011·Granted Sep 8, 2015·4 cites·6 claims
- 1774US4956972AMethod of controlling speed reduction ratio for a continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Sep 18, 1990·24 cites·4 claims
- 1873US9108855B2Method for producing purified alkali silicate aqueous solution and silica solEMA KIYOMI·Filed 2012·Granted Aug 18, 2015·2 cites·6 claims
- 1973US8737682B2Pipe thickness measuring device and method, and recording mediumFUJIFILM CORP·Filed 2013·Granted May 27, 2014·4 cites·15 claims
- 2073US4967610AMethod of controlling speed reduction ratio for continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Nov 6, 1990·22 cites·8 claims
- 2172US7652690B2Front-end signal processing circuit and imaging devicePANASONIC CORP·Filed 2007·Granted Jan 26, 2010·3 cites·7 claims
- 2270US4646520ATorque fluctuation absorber between a flywheel and a stepless hydraulic transmissionHONDA MOTOR CO LTD·Filed 1985·Granted Mar 3, 1987·22 cites·1 claims
- 2369US7259709B2Pipeline A/D converterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Aug 21, 2007·6 cites·8 claims
- 2468US5218540AMethod of controlling continuously variable transmission in combination with engine throttle controlHONDA MOTOR CO LTD·Filed 1990·Granted Jun 8, 1993·31 cites·15 claims
- 2568US4958495AHydraulic differential cylinderHONDA MOTOR CO LTD·Filed 1988·Granted Sep 25, 1990·20 cites·12 claims
- 2667US9791160B2Floor-positioned air-conditioning apparatusYAMAGUCHI KOUJI·Filed 2013·Granted Oct 17, 2017·5 cites·14 claims
- 2767US4962679AMethod of controlling speed reduction ratio for a continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Oct 16, 1990·19 cites·1 claims
- 2867US4961315AMethod of controlling speed reduction ratio of continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Oct 9, 1990·18 cites·14 claims
- 2964US10760839B2Indoor unit of air-conditioning apparatus having leaked refrigerant ventilationMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Sep 1, 2020·1 cites·15 claims
- 3063US4765295AThrottle valve controller for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Aug 23, 1988·14 cites·4 claims
- 3162US2025392337A1Tracker module, high frequency system, and communication deviceMURATA MANUFACTURING CO·Filed 2025·Application pending·0 cites
- 3257US7436344B2Pipeline A/D converterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Oct 14, 2008·3 cites·4 claims
- 3357US4932208AHydraulic continuously variable speed transmission with direct clutch valveHONDA MOTOR CO LTD·Filed 1988·Granted Jun 12, 1990·14 cites·6 claims
- 3456US10550300B2Method for producing purified active silicic acid solution and silica solNISSAN CHEMICAL IND LTD·Filed 2016·Granted Feb 4, 2020·0 cites·13 claims
- 3554US5239894AShift control systemHONDA MOTOR CO LTD·Filed 1991·Granted Aug 31, 1993·23 cites·7 claims
- 3654US4995470AControl apparatus for hydraulic continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Feb 26, 1991·11 cites·9 claims
- 3753US12159696B2Medical data evaluation utilization system and medical data evaluation utilization methodFUJIFILM CORP·Filed 2021·Granted Dec 3, 2024·0 cites·10 claims
- 3853US10400147B2Method for producing purified active silicic acid solution and silica solEMA KIYOMI·Filed 2012·Granted Sep 3, 2019·0 cites·11 claims
- 3953US7348916B2Pipeline A/D converter and method of pipeline A/D conversionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Mar 25, 2008·3 cites·4 claims
- 4053US2025286512A1Tracker moduleMURATA MANUFACTURING CO·Filed 2025·Application pending·0 cites
- 4151US2024313707A1Tracker module, power supply system, radio frequency system, communication device, and ic chipMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 4251US2007218303A1Aluminum alloy-made partNIHON ALUMINA KAKOU CO LTD·Filed 2007·Application pending·0 cites
- 4350US9938155B2Method for producing purified alkali silicate aqueous solution and silica solNISSAN CHEMICAL IND LTD·Filed 2015·Granted Apr 10, 2018·0 cites·15 claims
- 4449US5014574ASpeed control apparatus for a continuously variable speedHONDA MOTOR CO LTD·Filed 1988·Granted May 14, 1991·10 cites·9 claims
- 4549US2024333221A1Tracker circuit, communication device, and voltage supply methodMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 4649US2024313744A1Tracker module, radio frequency system, and communication deviceMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 4748US2008170086A1Front end signal processing method and front end signal processorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2008·Application pending·0 cites
- 4847US4958494AController for continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Sep 25, 1990·9 cites·24 claims
- 4947US4913005AMethod of controlling speed reduction ratio for a continuously variable speed transmissionHONDA MOTOR CO LTD·Filed 1988·Granted Apr 3, 1990·9 cites·8 claims
- 5047US2024333236A1Analog et circuit, radio-frequency system, communication device, and voltage supply methodMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
Showing the top 50 of 64 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Kouji Yamaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →