Inventor · disambiguated record
Shumpei Hasegawa
Also filed as: HASEGAWA SHUMPEI
87 granted patents·1,202 citations·filing 1981–2006
99Inventor score
Top patents by PatentIndex Score
87 records- 0192US4864977ACompression ratio-changing device for internal combustion enginesHONDA MOTOR CO LTD·Filed 1988·Granted Sep 12, 1989·38 cites·17 claims
- 0292US4502443AAir/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Mar 5, 1985·39 cites·5 claims
- 0389US4467761AEngine RPM control method for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Aug 28, 1984·32 cites·8 claims
- 0488US4864975ACompression ratio-changing device for internal combustion enginesHONDA MOTOR CO LTD·Filed 1988·Granted Sep 12, 1989·43 cites·18 claims
- 0587US4445483AFuel supply control system for internal combustion engines, having a function of leaning mixture in an engine low load regionHONDA MOTOR CO LTD·Filed 1982·Granted May 1, 1984·30 cites·10 claims
- 0686US4418674AElectronic fuel injection control system for multi-cylinder internal combustion enginesHONDA MOTOR CO LTD·Filed 1982·Granted Dec 6, 1983·29 cites·3 claims
- 0786US4399792AAir/fuel ratio control system for internal combustion engines, having engine warming-up detecting meansHONDA MOTOR CO LTD·Filed 1981·Granted Aug 23, 1983·29 cites·4 claims
- 0885US4377142AAir/fuel ratio control system having an evaporated fuel purging control arrangementHONDA MOTOR CO LTD·Filed 1981·Granted Mar 22, 1983·29 cites·2 claims
- 0982US7203594B2Failure diagnostic method and apparatus for atmospheric pressure sensorsHONDA MOTOR CO LTD·Filed 2006·Granted Apr 10, 2007·12 cites·14 claims
- 1082US4515009AMethod for detecting opening of a throttle valve in a fully closed position in an internal combustion engineHONDA MOTOR CO LTD·Filed 1983·Granted May 7, 1985·29 cites·6 claims
- 1182US4450812AElectric control system for internal combustion engines, having fail safe function for engine condition detecting sensorsHONDA MOTOR CO LTD·Filed 1981·Granted May 29, 1984·24 cites·12 claims
- 1282US4375800AControl system for internal combustion engines, provided with an exhaust gas recirculation control having a fail safe functionHONDA MOTOR CO LTD·Filed 1981·Granted Mar 8, 1983·23 cites·7 claims
- 1379US7243021B2Failure diagnostic method and apparatus for manifold pressure sensorHONDA MOTOR CO LTD·Filed 2006·Granted Jul 10, 2007·10 cites·14 claims
- 1479US4491108AIdling rpm feedback control method for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Jan 1, 1985·22 cites·12 claims
- 1579US4380985AFlow rate control system for fluid being supplied to an internal combustion engine, having initial position setting function for flow rate control valve actuatorHONDA MOTOR CO LTD·Filed 1981·Granted Apr 26, 1983·22 cites·12 claims
- 1677US4596164AAir-fuel ratio control method for internal combustion engines for vehiclesHONDA MOTOR CO LTD·Filed 1983·Granted Jun 24, 1986·25 cites·10 claims
- 1774US7197917B2Method and apparatus for diagnosing failure of an atmospheric pressure sensor in an engine control systemHONDA MOTOR CO LTD·Filed 2006·Granted Apr 3, 2007·10 cites·11 claims
- 1873US7324891B2Engine control method and deviceHONDA MOTOR CO LTD·Filed 2006·Granted Jan 29, 2008·7 cites·20 claims
- 1973US7100571B1Method and apparatus for controlling engineHONDA MOTOR CO LTD·Filed 2006·Granted Sep 5, 2006·7 cites·16 claims
- 2073US4509489AFuel supply control method for an internal combustion engine, adapted to improve operational stability, etc., of the engine during operation in particular operating conditionsHONDA MOTOR CO LTD·Filed 1983·Granted Apr 9, 1985·18 cites·12 claims
- 2173US4409948AExhaust gas recirculation control system having a function of automatically correcting detected zero opening value of exhaust gas recirculation valveHONDA MOTOR CO LTD·Filed 1982·Granted Oct 18, 1983·22 cites·6 claims
- 2271US7263427B2Failure diagnostic method and apparatus for manifold pressure sensorsHONDA MOTOR CO LTD·Filed 2006·Granted Aug 28, 2007·7 cites·17 claims
- 2371US4465051ADevice for intake air temperature-dependent correction of air/fuel ratio for internal combustion enginesHONDA MOTOR CO LTD·Filed 1982·Granted Aug 14, 1984·16 cites·7 claims
- 2471US4438744AIdling rpm feedback control method for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Mar 27, 1984·15 cites·2 claims
- 2571US4380988AAir/fuel ratio control system for internal combustion engines, having exhaust gas recirculation control functionHONDA MOTOR CO LTD·Filed 1981·Granted Apr 26, 1983·17 cites·2 claims
- 2670US4498443AFuel supply control method having fail-safe function for abnormalities in intake passage pressure detecting means of an internal combustion engine having a turbochargerHONDA MOTOR CO LTD·Filed 1983·Granted Feb 12, 1985·22 cites·4 claims
- 2769US4495925ADevice for intake air temperature-dependent correction of air/fuel ratio for internal combustion enginesHONDA MOTOR CO LTD·Filed 1982·Granted Jan 29, 1985·19 cites·7 claims
- 2868US4503829AFuel supply control method for internal combustion engines under high load conditionsHONDA MOTOR CO LTD·Filed 1983·Granted Mar 12, 1985·15 cites·6 claims
- 2968US4498445AAir/fuel ratio feedback control system adapted to obtain stable engine operation under particular engine operating conditionsHONDA MOTOR CO LTD·Filed 1983·Granted Feb 12, 1985·15 cites·2 claims
- 3068US4393842AAir/fuel ratio control system for internal combustion engines, having atmospheric pressure compensating functionHONDA MOTOR CO LTD·Filed 1981·Granted Jul 19, 1983·15 cites·6 claims
- 3167US4572141AMethod of controlling intake air quantity for internal combustion enginesHONDA MOTOR CO LTD·Filed 1984·Granted Feb 25, 1986·16 cites·14 claims
- 3267US4553516AIdling rpm control method for an internal combustion engine adapted to improve fuel consumption characteristic of the engineHONDA MOTOR CO LTD·Filed 1984·Granted Nov 19, 1985·30 cites·13 claims
- 3367US4375797AAir/fuel ratio feedback control system for internal combustion enginesHONDA MOTOR CO LTD·Filed 1981·Granted Mar 8, 1983·15 cites·1 claims
- 3466US4508088AMethod for controlling fuel supply to an internal combustion engine after termination of fuel cutHONDA MOTOR CO LTD·Filed 1983·Granted Apr 2, 1985·14 cites·6 claims
- 3566US4461263AElectronic fuel injection control system for internal combustion engines having exhaust gas recirculation control devicesHONDA MOTOR CO LTD·Filed 1982·Granted Jul 24, 1984·18 cites·5 claims
- 3666US4401080AAir/fuel ratio control system for internal combustion engines, having air/fuel ratio control function at engine accelerationHONDA MOTOR CO LTD·Filed 1981·Granted Aug 30, 1983·13 cites·3 claims
- 3765US4621600AFuel supply control method for internal combustion engines at fuel cut operationHONDA MOTOR CO LTD·Filed 1985·Granted Nov 11, 1986·15 cites·6 claims
- 3865US4481929AMethod and device for atmospheric pressure-dependent correction of air/fuel ratio for internal combustion enginesHONDA MOTOR CO LTD·Filed 1982·Granted Nov 13, 1984·17 cites·7 claims
- 3965US4414950AFail safe device for air/fuel ratio feedback control systemHONDA MOTOR CO LTD·Filed 1981·Granted Nov 15, 1983·14 cites·3 claims
- 4065US4383409AAir/fuel ratio control system for internal combustion engines, having function of detecting air/fuel ratio control initiating timingHONDA MOTOR CO LTD·Filed 1981·Granted May 17, 1983·19 cites·3 claims
- 4164US4957075AApparatus for controlling inlet of exhaust valvesHONDA MOTOR CO LTD·Filed 1989·Granted Sep 18, 1990·18 cites·3 claims
- 4263US4557242AAir/fuel ratio feedback control system for an internal combustion engine of a vehicleHONDA MOTOR CO LTD·Filed 1984·Granted Dec 10, 1985·11 cites·4 claims
- 4363US4466411AAir/fuel ratio feedback control method for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Aug 21, 1984·13 cites·10 claims
- 4462US4448177AExhaust gas recirculation control system having variable valve lift correcting speed for exhaust gas recirculation valveHONDA MOTOR CO LTD·Filed 1982·Granted May 15, 1984·17 cites·11 claims
- 4560US4527521AMethod for controlling fuel supply to an internal combustion engine after termination of fuel cutHONDA MOTOR CO LTD·Filed 1983·Granted Jul 9, 1985·12 cites·13 claims
- 4660US4483308AAir intake side secondary air supply system for an internal combustion engine equipped with exhaust gas recirculation control systemHONDA MOTOR CO LTD·Filed 1984·Granted Nov 20, 1984·10 cites·4 claims
- 4759US4526144AIdling rpm feedback control method for internal combustion enginesHONDA MOTOR CO LTD·Filed 1984·Granted Jul 2, 1985·13 cites·6 claims
- 4859US4434770AFuel injection timing signal and crank angle signal generating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Mar 6, 1984·13 cites·3 claims
- 4958US4503479AElectronic circuit for vehicles, having a fail safe function for abnormality in supply voltageHONDA MOTOR CO LTD·Filed 1983·Granted Mar 5, 1985·17 cites·5 claims
- 5057US4526153AAir-fuel ratio control method for an internal combustion engine for vehicles in low load operating regionsHONDA MOTOR CO LTD·Filed 1983·Granted Jul 2, 1985·11 cites·12 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →