Inventor · disambiguated record
Hirofumi Ohuchi
Also filed as: OHUCHI HIROFUMI
59 granted patents·1,223 citations·filing 1990–2001
99Inventor score
Files withMITSUBISHI ELECTRIC CORP59
Top patents by PatentIndex Score
59 records- 0189US5488938AFault detecting apparatus for exhaust gas recirculation control system of internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Feb 6, 1996·55 cites·72 claims
- 0288US6532940B1Fuel injection control system for cylinder injection type internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Mar 18, 2003·35 cites·6 claims
- 0386US6196173B1Valve timing control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Mar 6, 2001·49 cites·12 claims
- 0484US6494173B2Valve timing control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Dec 17, 2002·22 cites·6 claims
- 0583US5257610ATroubleshooting system for exhaust gas recirculation controllerMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Nov 2, 1993·42 cites·12 claims
- 0682US6513488B2Fuel injection control apparatus for direct injection type internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Feb 4, 2003·25 cites·3 claims
- 0782US5363647ADual-sensor type air fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the sameMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Nov 15, 1994·24 cites·6 claims
- 0881US6170459B1Fuel injection control assembly for a cylinder-injected engineMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Jan 9, 2001·27 cites·12 claims
- 0979US6513322B2Device for controlling the rise of the catalyst temperature in an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Feb 4, 2003·21 cites·8 claims
- 1079US5501201AFlow quantity valve controller and manufacturing method for flow quantity valveMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Mar 26, 1996·36 cites·28 claims
- 1179US5327873AMalfunction sensing apparatus for a fuel vapor control systemMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Jul 12, 1994·34 cites·10 claims
- 1278US6446602B1Cylinder identifying system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Sep 10, 2002·17 cites·13 claims
- 1378US5947077AControl device for cylinder injection internal-combustion engineMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Sep 7, 1999·34 cites·20 claims
- 1477US5794585ACylinder injection fuel control device for an internal-combustion engineMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Aug 18, 1998·32 cites·5 claims
- 1576US6212884B1Device for controlling the rise of the catalyst temperature in an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Apr 10, 2001·28 cites·10 claims
- 1676US5640846ADual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the sameMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Jun 24, 1997·28 cites·5 claims
- 1775US6345498B2Exhaust gas purifier for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Feb 12, 2002·41 cites·4 claims
- 1875US5519992AExhaust gas purification system for internal combustion engine, and apparatus and method for controlling the sameMITSUBISHI ELECTRIC CORP·Filed 1994·Granted May 28, 1996·37 cites·7 claims
- 1975US5152273AExhaust gas recirculation control device and its failure diagnosis deviceMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Oct 6, 1992·31 cites·6 claims
- 2073US5560202AExhaust gas cleaner system for an internal combustion engine with catalytic converter supplied with secondary airMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Oct 1, 1996·18 cites·4 claims
- 2173US5517848AExhaust gas purification system for internal combustion engine, and apparatus and method for controlling the sameMITSUBISHI ELECTRIC CORP·Filed 1995·Granted May 21, 1996·32 cites·7 claims
- 2271US6279537B1Air fuel ratio control apparatus for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Aug 28, 2001·27 cites·12 claims
- 2370US6601115B1Communication protocol converter system and monitor deviceMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Jul 29, 2003·15 cites·16 claims
- 2469US6076502AExhaust gas recirculation control system for internal combustion enginesMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Jun 20, 2000·26 cites·13 claims
- 2569US5438827ADual-sensor type air-fuel ratio control system for internal combustion engine and catalytic diagnosis apparatus for the sameMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Aug 8, 1995·24 cites·2 claims
- 2669US5426937ADual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the sameMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Jun 27, 1995·24 cites·10 claims
- 2768US6318152B1Fuel property judgement device for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Nov 20, 2001·28 cites·9 claims
- 2867US6073611AControl apparatus for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Jun 13, 2000·39 cites·20 claims
- 2967US5503131AStepping motor driving apparatus and exhaust gas recirculation control system using the sameMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Apr 2, 1996·25 cites·11 claims
- 3066US6454676B1Control system for internal combustion engine equipped with automatic transmissionMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Sep 24, 2002·19 cites·14 claims
- 3166US5154156AFailure diagnosis device of an exhaust gas recirculation control deviceMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Oct 13, 1992·22 cites·2 claims
- 3261US5054446AIdle revolution speed control apparatus for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Oct 8, 1991·17 cites·3 claims
- 3359US6499450B2Valve timing control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Dec 31, 2002·7 cites·7 claims
- 3459US5591905ADeterioration detecting apparatus for catalytic converterMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Jan 7, 1997·24 cites·8 claims
- 3557US6176227B1Control system for cylinder injection type internal combustion engine with exhaust gas recirculation feedback controlMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Jan 23, 2001·27 cites·11 claims
- 3656US6591184B2Cylinder identifying system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Jul 8, 2003·9 cites·9 claims
- 3756US5417061ADevice for detecting catalyst deterioration for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1994·Granted May 23, 1995·16 cites·3 claims
- 3853US5251599AInternal combustion engine control device having exhaust gas recycle systemMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Oct 12, 1993·13 cites·4 claims
- 3952US6213067B1Control device for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Apr 10, 2001·14 cites·5 claims
- 4052US5417099AAir-fuel ratio sensor trouble detecting apparatusMITSUBISHI ELECTRIC CORP·Filed 1994·Granted May 23, 1995·16 cites·16 claims
- 4151US6227163B1Fuel injection control system for cylinder injection type internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2000·Granted May 8, 2001·10 cites·6 claims
- 4251US5056483AEngine speed control apparatusMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Oct 15, 1991·12 cites·2 claims
- 4350US5425234ADual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the sameMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Jun 20, 1995·13 cites·3 claims
- 4449US6474307B1Fuel injection control device for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Nov 5, 2002·6 cites·4 claims
- 4549US5459999AExhaust gas cleaner system for an internal combustion engine with catalytic converter supplied with secondary airMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Oct 24, 1995·15 cites·3 claims
- 4646US5257534AFault diagnosis device for an exhaust gas recycle control unitMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Nov 2, 1993·10 cites·6 claims
- 4745US5184595ADisorder diagnosis device for fuel injection apparatusMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Feb 9, 1993·10 cites·5 claims
- 4844US5024196AIdle speed adjusting system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Jun 18, 1991·9 cites·3 claims
- 4942US6240894B1Control system for cylinder injection type internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Jun 5, 2001·8 cites·12 claims
- 5041US6092505AEngine controlling apparatus for an automotive engineMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Jul 25, 2000·9 cites·14 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →