Inventor · disambiguated record
Koichi Hoshi
Also filed as: HOSHI KOICHI
47 granted patents·7 pending applications·858 citations·filing 1974–2017
98Inventor score
Top patents by PatentIndex Score
54 records- 0195US10174699B2Exhaust gas purification system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Jan 8, 2019·9 cites·8 claims
- 0295US6321530B1Exhaust gas purifier and method of purifying exhaust gas for a hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2000·Granted Nov 27, 2001·95 cites·19 claims
- 0395US5964088ADevice for purifying exhaust gas of engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Oct 12, 1999·114 cites·43 claims
- 0494US6253547B1Apparatus and method for determining amount of unburned fuel component adsorbed by an adsorbent in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2000·Granted Jul 3, 2001·61 cites·22 claims
- 0593US6122910AExhaust gas purifying apparatus for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Sep 26, 2000·89 cites·22 claims
- 0691US7195008B2Cylinder-by-cylinder air-fuel ratio controller for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted Mar 27, 2007·22 cites·9 claims
- 0790US6321533B1Exhaust passage switching unit and method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2000·Granted Nov 27, 2001·46 cites·17 claims
- 0888US9057331B2Control device for internal combustion engineHOSHI KOICHI·Filed 2010·Granted Jun 16, 2015·9 cites·2 claims
- 0985US6797517B1Catalyst degradation detecting device and method thereof in internal combustion engineTOYOTA MOTOR CO LTD·Filed 2000·Granted Sep 28, 2004·36 cites·5 claims
- 1084US8443588B2Control apparatus for internal combustion engineNISHIKIORI TAKASHI·Filed 2010·Granted May 21, 2013·9 cites·8 claims
- 1183US7107759B2Apparatus for reducing hydrocarbon emission of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Sep 19, 2006·26 cites·29 claims
- 1283US7028673B2Evaporative fuel adsorption deviceAISIN SEIKI·Filed 2005·Granted Apr 18, 2006·11 cites·5 claims
- 1383US6370872B1Exhaust gas purifier for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2000·Granted Apr 16, 2002·30 cites·5 claims
- 1483US5979157AMethod and a device for purifying exhaust gas of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Nov 9, 1999·51 cites·18 claims
- 1581US10309332B2Exhaust gas purification system for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Jun 4, 2019·2 cites·5 claims
- 1680US7654133B2Malfunction diagnostic apparatus and malfunction diagnostic method for combustion improvement deviceTOYOTA MOTOR CO LTD·Filed 2007·Granted Feb 2, 2010·10 cites·19 claims
- 1779US9951707B2Exhaust purification system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2016·Granted Apr 24, 2018·2 cites·17 claims
- 1879US9719451B2Exhaust purification system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2016·Granted Aug 1, 2017·2 cites·8 claims
- 1979US6857415B2Control system for internal combustion engineDENSO CORP·Filed 2004·Granted Feb 22, 2005·21 cites·8 claims
- 2078US4993392AApparatus for controlling heater for heating oxygen sensorTOYOTA MOTOR CO LTD·Filed 1990·Granted Feb 19, 1991·33 cites·17 claims
- 2176US9446352B2Atmosphere-cleaning device for vehiclesTOMIMATSU MAKOTO·Filed 2012·Granted Sep 20, 2016·4 cites·17 claims
- 2270US9726101B2Exhaust purification system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2016·Granted Aug 8, 2017·1 cites·22 claims
- 2369US8925305B2Exhaust device for an internal combustion engineSHINODA YOSHIHISA·Filed 2010·Granted Jan 6, 2015·2 cites·4 claims
- 2469US7171954B2Fuel vapor adsorbing devicesAISIN SEIKI·Filed 2005·Granted Feb 6, 2007·6 cites·8 claims
- 2567US10563604B2Control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2015·Granted Feb 18, 2020·1 cites·3 claims
- 2666US8999255B2Air purification system for vehicleSHINODA YOSHIHISA·Filed 2010·Granted Apr 7, 2015·2 cites·6 claims
- 2765US8099954B2Exhaust manifoldHOSHI KOICHI·Filed 2009·Granted Jan 24, 2012·3 cites·11 claims
- 2865US6324893B1Diagnostic apparatus and method for adsorbentTOYOTA MOTOR CO LTD·Filed 1999·Granted Dec 4, 2001·28 cites·24 claims
- 2964US7047727B2Rapid catalyst warm-up control device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted May 23, 2006·12 cites·10 claims
- 3057US6732503B2Air/fuel ratio controller for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted May 11, 2004·9 cites·14 claims
- 3157US6128898AExhaust gas purifying apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Oct 10, 2000·27 cites·20 claims
- 3257US5271223AExhaust gas purifying device of an engineTOYOTA MOTOR CO LTD·Filed 1993·Granted Dec 21, 1993·24 cites·15 claims
- 3354US5823163AIntake air-flow control device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Oct 20, 1998·15 cites·11 claims
- 3452US6401450B1Catalyst deterioration detector and method of detecting deterioration of catalystTOYOTA MOTOR CO LTD·Filed 1999·Granted Jun 11, 2002·21 cites·12 claims
- 3548US6945223B2Failure diagnostic apparatus for intake air stream control device and control method of failure diagnostic apparatusTOYOTA MOTOR CO LTD·Filed 2004·Granted Sep 20, 2005·5 cites·17 claims
- 3646US7836683B2Control apparatus and method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Nov 23, 2010·0 cites·12 claims
- 3745US7299788B2Internal combustion engine and method of detecting abnormality of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted Nov 27, 2007·0 cites·18 claims
- 3845US2014030153A1Air purification device for vehiclesSUGIMOTO KAZUHIRO·Filed 2013·Application pending·0 cites
- 3944US8601985B2Exhaust gas cooling adapterTAKAHASHI YUKIHIRO·Filed 2012·Granted Dec 10, 2013·0 cites·8 claims
- 4044US8584653B2Control device of internal combustion engineTOMIMATSU MAKOTO·Filed 2008·Granted Nov 19, 2013·1 cites·9 claims
- 4144US8560170B2Method for estimating amount of heat received by refrigerant and controllerHOSHI KOICHI·Filed 2009·Granted Oct 15, 2013·0 cites·7 claims
- 4244US2011265740A1Engine cooling deviceTOYOTA MOTOR CO LTD·Filed 2009·Application pending·0 cites
- 4344US2016115876A1Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2014·Application pending·0 cites
- 4443US7853399B2Internal combustion engine control apparatus and methodTOYOTA MOTOR CO LTD·Filed 2008·Granted Dec 14, 2010·0 cites·9 claims
- 4543US5509397AAir supply system preventing backflowTOYOTA MOTOR CO LTD·Filed 1995·Granted Apr 23, 1996·10 cites·13 claims
- 4643US4043309AInternal combustion engine having auxiliary combustion chamberTOYOTA MOTOR CO LTD·Filed 1974·Granted Aug 23, 1977·6 cites·7 claims
- 4743US2012047893A1Engine cooling deviceHOSHI KOICHI·Filed 2009·Application pending·0 cites
- 4842US2014004010A1Air-purifying device for vehicleSUGIMOTO KAZUHIRO·Filed 2011·Application pending·0 cites
- 4941US9239018B2Fuel control apparatus for internal combustion engineHOSHI KOICHI·Filed 2010·Granted Jan 19, 2016·0 cites·5 claims
- 5041US6729305B2Fuel injection amount control apparatus and method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted May 4, 2004·3 cites·9 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →