Inventor · disambiguated record
Naoki Tomisawa
Also filed as: TOMISAWA NAOKI
77 granted patents·1,560 citations·filing 1981–2004
99Inventor score
Files withUNISIA JECS CORP44JAPAN ELECTRONIC CONTROL SYST27NISSAN MOTOR4HITACHI LTD1JAPAN ELECTRONICS CONTROL SYST1
Top patents by PatentIndex Score
77 records- 0196US5542394AVehicle engine refueling detection apparatus and method and fuel supply apparatus and methodUNISIA JECS CORP·Filed 1995·Granted Aug 6, 1996·85 cites·21 claims
- 0290US4715344ALearning and control apparatus for electronically controlled internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1986·Granted Dec 29, 1987·37 cites·12 claims
- 0389US5850458AApparatus and method for actively reducing noise in vehicular passengers compartmentUNISIA JECS CORP·Filed 1995·Granted Dec 15, 1998·87 cites·33 claims
- 0487US5611311ACrank angle sensing systemUNISIA JECS CORP·Filed 1995·Granted Mar 18, 1997·54 cites·14 claims
- 0587US5182710ADriving condition recognition system for an automotive vehicle and shift control system for an automotive automatic power transmission utilizing the results of vehicular driving state recognitionJAPAN ELECTRONIC CONTROL SYST·Filed 1990·Granted Jan 26, 1993·41 cites·21 claims
- 0686US5606855AApparatus and method for estimating the temperature of an automotive catalytic converterUNISIA JECS CORP·Filed 1994·Granted Mar 4, 1997·61 cites·6 claims
- 0786US5586537AFuel property detecting apparatus for internal combustion enginesUNISIA JECS CORP·Filed 1995·Granted Dec 24, 1996·48 cites·12 claims
- 0886US4615319AApparatus for learning control of air-fuel ratio of airfuel mixture in electronically controlled fuel injection type internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1984·Granted Oct 7, 1986·29 cites·18 claims
- 0982US4729359ALearning and control apparatus for electronically controlled internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1986·Granted Mar 8, 1988·33 cites·12 claims
- 1081US5499607AFuel characteristic detecting system for internal combustion engineUNISIA JECS CORP·Filed 1995·Granted Mar 19, 1996·38 cites·11 claims
- 1180US4881505AElectronic learning control apparatus for internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Nov 21, 1989·24 cites·20 claims
- 1279US5458102AAir fuel ratio control systemUNISIA JECS CORP·Filed 1994·Granted Oct 17, 1995·30 cites·11 claims
- 1379US5103791AFuel supply control system for internal combustion engine with feature of exhaust temperature responsive enrichmentJAPAN ELECTRONIC CONTROL SYST·Filed 1991·Granted Apr 14, 1992·32 cites·11 claims
- 1479US4844026ASpark ignition timing control system for internal combustion engine with feature of suppression of jerking during engine accelerationJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Jul 4, 1989·17 cites·25 claims
- 1578US5635635AMethod and apparatus for detecting the intake air quantity of an engineUNISIA JECS CORP·Filed 1994·Granted Jun 3, 1997·45 cites·21 claims
- 1677US4875456ASelf-diagnosis system for auxiliary air control system of internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1989·Granted Oct 24, 1989·21 cites·20 claims
- 1776US5682856AApparatus for controlling an internal combustion engine and method thereofUNISIA JECS CORP·Filed 1996·Granted Nov 4, 1997·32 cites·10 claims
- 1875US5469827AMethod and apparatus for control of the start-up air-fuel ratio of an internal combustion engineUNISIA JECS CORP·Filed 1994·Granted Nov 28, 1995·26 cites·22 claims
- 1974US4655188AApparatus for learning control of air-fuel ratio of air-fuel mixture in electronically controlled fuel injection type internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1985·Granted Apr 7, 1987·28 cites·17 claims
- 2072US4957083AFuel supply control system for internal combustion engine with feature providing engine stability in low engine load conditionJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Sep 18, 1990·18 cites·13 claims
- 2172US4947816AControl system for internal combustion engine with improved control characteristics at transition of engine driving conditionJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Aug 14, 1990·18 cites·13 claims
- 2272US4800857AApparatus for learn-controlling air-fuel ratio for internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Jan 31, 1989·19 cites·10 claims
- 2371US5698776AMethod and apparatus for detecting combustion conditions of an internal combustion engine, and engine control method using the detection method, and engine control apparatus using the detection apparatusUNISIA JECS CORP·Filed 1996·Granted Dec 16, 1997·26 cites·12 claims
- 2469US5553573AValve duration control system for four-cycle engineUNISIA JECS CORP·Filed 1995·Granted Sep 10, 1996·42 cites·10 claims
- 2568US5445124AMethod and apparatus for controlling the idle speed of an internal combustion engineUNISIA JECS CORP·Filed 1994·Granted Aug 29, 1995·21 cites·14 claims
- 2668US5196844AMethod and apparatus for detecting reference rotational angle for each cylinder in multiple-cylinder internal combustion engineNISSAN MOTOR·Filed 1989·Granted Mar 23, 1993·12 cites·21 claims
- 2767US5850811AApparatus for controlling timings of exhaust valves and method thereofUNISIA JECS CORP·Filed 1997·Granted Dec 22, 1998·28 cites·8 claims
- 2867US5353764AElectronically controlled fuel supply method and device for internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1993·Granted Oct 11, 1994·20 cites·10 claims
- 2967US4911131AFuel control apparatus for internal combustion engineNISSAN MOTOR·Filed 1988·Granted Mar 27, 1990·17 cites·14 claims
- 3066US5507180AApparatus and method for detecting rough road travel of a vehicle, and apparatus and method for detecting misfire of a vehicle engineUNISIA JECS CORP·Filed 1995·Granted Apr 16, 1996·24 cites·10 claims
- 3164US5599254AMethod and apparatus for diagnosing a fault in a lock-up mechanism of a torque converter fitted to an automatic transmissionUNISIA JECS CORP·Filed 1995·Granted Feb 4, 1997·21 cites·24 claims
- 3264US5560340AFuel-supply system for internal combustion enginesUNISIA JECS CORP·Filed 1995·Granted Oct 1, 1996·22 cites·7 claims
- 3363US5701868AMethod and apparatus for controlling the ignition timing of an internal combustion engineUNISIA JECS CORP·Filed 1997·Granted Dec 30, 1997·21 cites·6 claims
- 3463US5429098AMethod and apparatus for controlling the treatment of fuel vapor of an internal combustion engineUNISIA JECS CORP·Filed 1994·Granted Jul 4, 1995·19 cites·18 claims
- 3563US5363831AMethod of and an apparatus for carrying out feedback control on an air-fuel ratio in an internal combustion engineUNISIA JECS CORP·Filed 1993·Granted Nov 15, 1994·19 cites·12 claims
- 3663US4854287AApparatus for learning and controlling air/fuel ratio in internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1987·Granted Aug 8, 1989·14 cites·10 claims
- 3763US4763627ALearning and control apparatus for electronically controlled internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1986·Granted Aug 16, 1988·14 cites·13 claims
- 3862US5631412AApparatus and method for estimating atmospheric pressure in an internal combustion engineUNISIA JECS CORP·Filed 1996·Granted May 20, 1997·21 cites·14 claims
- 3961US5992373AApparatus and method for controlling fuel injection of direct injection gasoline internal combustion engineUNISIA JECS CORP·Filed 1997·Granted Nov 30, 1999·20 cites·13 claims
- 4059US5664544AApparatus and method for control of an internal combustion engineUNISIA JECS CORP·Filed 1996·Granted Sep 9, 1997·19 cites·14 claims
- 4159US4911129AAir/fuel mixture ratio control system in internal combustion engine with _engine operation range dependent _optimum correction coefficient learning featureJAPAN ELECTRONICS CONTROL SYST·Filed 1988·Granted Mar 27, 1990·14 cites·38 claims
- 4258US5747677AApparatus and method for detecting pressure in an engine cylinderUNISIA JECS CORP·Filed 1996·Granted May 5, 1998·18 cites·7 claims
- 4358US5617833AApparatus and method for diagnosing exhaust recirculation system in internal combustion engineUNISIA JECS CORP·Filed 1995·Granted Apr 8, 1997·18 cites·11 claims
- 4458US5043984AMethod and system for inspecting microprocessor-based unit and/or component thereofJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Aug 27, 1991·17 cites·28 claims
- 4557US5394849AMethod of and an apparatus for controlling the quantity of fuel supplied to an internal combustion engineUNISIA JECS CORP·Filed 1993·Granted Mar 7, 1995·15 cites·12 claims
- 4655US5408981AApparatus and method for controlling air/fuel mixture ratio in feedback control mode for internal combustion engineUNISIA JECS CORP·Filed 1993·Granted Apr 25, 1995·14 cites·12 claims
- 4755US5375574AEngine idling speed control apparatusUNISIA JECS CORP·Filed 1993·Granted Dec 27, 1994·15 cites·5 claims
- 4854US4911132AFuel injection control system for multi-cylinder internal combustion engine with feature of improved response characteristics to acceleration enrichment demandJAPAN ELECTRONIC CONTROL SYST·Filed 1988·Granted Mar 27, 1990·16 cites·32 claims
- 4952US5634451AApparatus and method for treating fuel vapor of an engineUNISIA JECS CORP·Filed 1994·Granted Jun 3, 1997·13 cites·6 claims
- 5052US5579737AMethod and apparatus for electronically controlling a fuel supply to an internal combustion engineUNISIA JECS CORP·Filed 1994·Granted Dec 3, 1996·10 cites·8 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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