Inventor · disambiguated record
Ryoji Nishiyama
Also filed as: NISHIYAMA RYOJI
40 granted patents·934 citations·filing 1987–2010
98Inventor score
Top patents by PatentIndex Score
40 records- 0196US6450287B1Electric power steering controller and control method thereofMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Sep 17, 2002·87 cites·18 claims
- 0292US7471003B2Vehicular power control apparatusMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Dec 30, 2008·36 cites·9 claims
- 0391US4753204AAir-fuel ratio control system for internal combustion enginesMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Jun 28, 1988·38 cites·10 claims
- 0487US6496762B2Electric power steering controller and method of controlling sameMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Dec 17, 2002·45 cites·13 claims
- 0587US6445987B1Electric power steering controller and control methodMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Sep 3, 2002·40 cites·20 claims
- 0687US5653106AExothermic heat generating apparatusMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Aug 5, 1997·68 cites·18 claims
- 0786US7538426B2Cooling system of power semiconductor moduleMITSUBISHI ELECTRIC CORP·Filed 2005·Granted May 26, 2009·16 cites·16 claims
- 0886US6459971B1Electric power steering control system and method for controlling the electric power steering control systemMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Oct 1, 2002·37 cites·18 claims
- 0985US4765298AAir-fuel ratio control system for internal combustion enginesMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Aug 23, 1988·27 cites·5 claims
- 1084US5359975AControl system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Nov 1, 1994·38 cites·3 claims
- 1182US7826231B2Power conversion apparatusMITSUBISHI ELECTRIC COMPANY·Filed 2006·Granted Nov 2, 2010·10 cites·13 claims
- 1282US6878354B1Catalyst and process for exhaust purificationMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Apr 12, 2005·28 cites·6 claims
- 1380US6199540B1Fuel control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Mar 13, 2001·20 cites·6 claims
- 1480US6006727AFuel control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Dec 28, 1999·29 cites·5 claims
- 1579US5038737AControl apparatus for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Aug 13, 1991·31 cites·7 claims
- 1678US5403245AControl device for vehicular engine having an automatic transmission and its control methodMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Apr 4, 1995·31 cites·1 claims
- 1778US4996960AAir-fuel ratio control system for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Mar 5, 1991·31 cites·2 claims
- 1875US5675968ASecondary air control apparatus for exhaust gas purifierMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Oct 14, 1997·38 cites·7 claims
- 1975US5337240AMisfiring sensing apparatusMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Aug 9, 1994·33 cites·23 claims
- 2074US5245969AEngine control device and control method thereofMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Sep 21, 1993·27 cites·2 claims
- 2172US8031478B2Power conversion apparatusMITSUBISHI ELECTRIC CORP·Filed 2010·Granted Oct 4, 2011·2 cites·11 claims
- 2269US6076502AExhaust gas recirculation control system for internal combustion enginesMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Jun 20, 2000·26 cites·13 claims
- 2369US5474045AEngine control deviceMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Dec 12, 1995·23 cites·9 claims
- 2469US4889098AAir-fuel ratio detecting apparatus for an internal combustion engine equipped with a heater controllerMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Dec 26, 1989·16 cites·6 claims
- 2569US4886028AApparatus for controlling air-fuel ratio of internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Dec 12, 1989·16 cites·2 claims
- 2662US4909224AElectronic controller for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Mar 20, 1990·15 cites·8 claims
- 2761US4984552AFuel injection device for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Jan 15, 1991·14 cites·6 claims
- 2856US4951634AFuel injection device for an internal combustion engineMITSUBISHI MOTORS CORP·Filed 1989·Granted Aug 28, 1990·12 cites·11 claims
- 2951US6227163B1Fuel injection control system for cylinder injection type internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2000·Granted May 8, 2001·10 cites·6 claims
- 3051US4962742AFuel injection device for an internal combustion engineMITSUBISHI MOTORS CORP·Filed 1989·Granted Oct 16, 1990·10 cites·9 claims
- 3150US4911130AAir-fuel ratio controller of internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Mar 27, 1990·9 cites·10 claims
- 3248US4854285AElectronic control circuit for internal-combustion enginesMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Aug 8, 1989·6 cites·7 claims
- 3347US5983862ACombustion control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Nov 16, 1999·12 cites·9 claims
- 3446US5027779AFuel injection control apparatus for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Jul 2, 1991·10 cites·1 claims
- 3546US4877002AElectronic control device for internal-combustion enginesMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Oct 31, 1989·7 cites·3 claims
- 3641US4809664AFuel controlling system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Mar 7, 1989·6 cites·6 claims
- 3740US5148369AAir-fuel control apparatus for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Sep 15, 1992·7 cites·11 claims
- 3839US5107814AFuel control apparatus for an internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Apr 28, 1992·11 cites·10 claims
- 3937US4895123AApparatus for controlling air-fuel ratio of internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Jan 23, 1990·9 cites·2 claims
- 4032US6109242AFuel control system for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Aug 29, 2000·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →