Inventor · disambiguated record
Yukihiro Yamashita
Also filed as: YAMASHITA YUKIHIRO
76 granted patents·9 pending applications·1,870 citations·filing 1993–2020
99Inventor score
Top patents by PatentIndex Score
85 records- 0196US7200988B2Air-fuel ratio control system and methodDENSO CORP·Filed 2005·Granted Apr 10, 2007·33 cites·7 claims
- 0296US6898927B2Emission control system with catalyst warm-up speeding controlDENSO CORP·Filed 2002·Granted May 31, 2005·99 cites·17 claims
- 0396US5709198AOxygen concentration detecting apparatusNIPPON DENSO CO·Filed 1996·Granted Jan 20, 1998·72 cites·9 claims
- 0496US5570574AAir-fuel ratio control system for internal combustion engineNIPPON DENSO CO·Filed 1994·Granted Nov 5, 1996·82 cites·10 claims
- 0595US8001799B2Multiple cooling sources for a vehicle air conditioning systemDENSO CORP·Filed 2007·Granted Aug 23, 2011·32 cites·24 claims
- 0695US6244046B1Engine exhaust purification system and method having NOx occluding and reducing catalystDENSO CORP·Filed 1999·Granted Jun 12, 2001·80 cites·3 claims
- 0794US5672817ASelf-diagnostic apparatus of air-fuel ratio control system of internal combustion engineNIPPON DENSO CO·Filed 1995·Granted Sep 30, 1997·75 cites·26 claims
- 0894US5622047AMethod and apparatus for detecting saturation gas amount absorbed by catalytic converterNIPPON DENSO CO·Filed 1994·Granted Apr 22, 1997·99 cites·16 claims
- 0993US7040307B2System for diagnosing degradation of air-fuel sensorDENSO CORP·Filed 2005·Granted May 9, 2006·25 cites·10 claims
- 1092US6539707B2Exhaust emission control system for internal combustion engineDENSO CORP·Filed 2001·Granted Apr 1, 2003·45 cites·22 claims
- 1192US6148612AEngine exhaust gas control system having NOx catalystDENSO CORP·Filed 1998·Granted Nov 21, 2000·53 cites·7 claims
- 1291US10234420B2Gas sensor control deviceDENSO CORP·Filed 2014·Granted Mar 19, 2019·11 cites·11 claims
- 1391US5964208AAbnormality diagnosing system for air/fuel ratio feedback control systemDENSO CORP·Filed 1997·Granted Oct 12, 1999·53 cites·34 claims
- 1491US5852228AApparatus and method for controlling oxygen sensor heatingDENSO CORP·Filed 1997·Granted Dec 22, 1998·49 cites·11 claims
- 1590US7248960B2Air-fuel ratio sensor monitor, air-fuel ratio detector, and air-fuel ratio controlDENSO CORP·Filed 2006·Granted Jul 24, 2007·18 cites·49 claims
- 1689US6258232B1Gas component concentration measuring apparatusDENSO CORP·Filed 1998·Granted Jul 10, 2001·53 cites·24 claims
- 1788US11864324B2Moving work management device, moving work device, mounting system, and moving work management methodFUJI CORP·Filed 2018·Granted Jan 2, 2024·5 cites·7 claims
- 1888US6382188B2Fuel injection control system of internal combustion engineDENSO CORP·Filed 2001·Granted May 7, 2002·30 cites·20 claims
- 1988US6032659AAbnormality diagnosing system for air/fuel ratio feedback control systemDENSO CORP·Filed 1999·Granted Mar 7, 2000·45 cites·4 claims
- 2087US7459801B2Control apparatus for selectively controlling output current and output voltage of electric generatorDENSO CORP·Filed 2006·Granted Dec 2, 2008·20 cites·5 claims
- 2186US7347184B2Controller and controlling method for internal combustion engineDENSO CORP·Filed 2006·Granted Mar 25, 2008·17 cites·4 claims
- 2286US6976382B2Abnormality diagnosing apparatus of exhaust gas sensorDENSO CORP·Filed 2003·Granted Dec 20, 2005·35 cites·35 claims
- 2386US6311482B1Air-fuel ratio control apparatus for internal combustion enginesDENSO CORP·Filed 2000·Granted Nov 6, 2001·51 cites·13 claims
- 2486US6223730B1Fuel injection control system of internal combustion engineDENSO CORP·Filed 1998·Granted May 1, 2001·40 cites·33 claims
- 2584US10634643B2Gas sensor control deviceDENSO CORP·Filed 2017·Granted Apr 28, 2020·2 cites·8 claims
- 2684US6314790B1Oxygen concentration detecting apparatusNIPPON DENSO CO·Filed 1999·Granted Nov 13, 2001·33 cites·10 claims
- 2783US11006558B2Mounting management deviceFUJI CORP·Filed 2015·Granted May 11, 2021·4 cites·20 claims
- 2883US7571712B2Controller and controlling method for internal combustion engineDENSO CORP·Filed 2008·Granted Aug 11, 2009·14 cites·22 claims
- 2983US5845486AInternal combustion engine exhaust gas purifier apparatusNIPPON DENSO CO·Filed 1996·Granted Dec 8, 1998·40 cites·16 claims
- 3082US11943873B2Management device, movable work device, mounting system, and management methodFUJI CORP·Filed 2019·Granted Mar 26, 2024·4 cites·3 claims
- 3182US6560959B2Exhaust gas purification apparatus of internal combustion engineDENSO CORP·Filed 2000·Granted May 13, 2003·32 cites·9 claims
- 3281US6438946B1Exhaust gas purification device for enginesDENSO CORP·Filed 2000·Granted Aug 27, 2002·25 cites·20 claims
- 3380US7710068B2Electrical power supply system for motor vehicleDENSO CORP·Filed 2007·Granted May 4, 2010·18 cites·20 claims
- 3480US6341599B1Power supply control system for heater used in gas concentration sensorDENSO CORP·Filed 1999·Granted Jan 29, 2002·37 cites·24 claims
- 3580US5390491AIgnition timing control system for internal combustion engineNIPPON DENSO CO·Filed 1994·Granted Feb 21, 1995·22 cites·20 claims
- 3679US6009866AOxygen concentration detecting apparatusNIPPON DENSO CO·Filed 1997·Granted Jan 4, 2000·27 cites·5 claims
- 3778US6164125ADetection of malfunction in gas concentration detection systemDENSO CORP·Filed 1998·Granted Dec 26, 2000·49 cites·19 claims
- 3878US5719778AHeater control apparatus for oxygen sensorNIPPON DENSO CO·Filed 1995·Granted Feb 17, 1998·58 cites·38 claims
- 3977US7473206B2Engine controller and control methodDENSO CORP·Filed 2006·Granted Jan 6, 2009·12 cites·40 claims
- 4077US6600998B1Catalyst deteriorating state detecting apparatusDENSO CORP·Filed 2000·Granted Jul 29, 2003·24 cites·19 claims
- 4176US7355292B2Power generation control apparatus for internal combustion engineDENSO CORP·Filed 2006·Granted Apr 8, 2008·11 cites·48 claims
- 4275US6094975AHeater control having capability of restoring normal heater power supply after detection of abnormalityDENSO CORP·Filed 1998·Granted Aug 1, 2000·29 cites·20 claims
- 4375US5758632ADiagnostic apparatus for air-fuel ratio sensorNIPPON DENSO CO·Filed 1996·Granted Jun 2, 1998·31 cites·5 claims
- 4473US5974857AApparatus and method for controlling oxygen sensor heatingDENSO CORP·Filed 1998·Granted Nov 2, 1999·32 cites·10 claims
- 4572US7201160B2Air-fuel ratio sensor monitor, air-fuel ratio detector, and air-fuel ratio controlDENSO CORP·Filed 2004·Granted Apr 10, 2007·14 cites·9 claims
- 4672US5491975AAir-fuel ratio control system for internal combustion engineNIPPON DENSO CO·Filed 1993·Granted Feb 20, 1996·24 cites·12 claims
- 4771US7291935B2Vehicle generator control deviceDENSO CORP·Filed 2006·Granted Nov 6, 2007·9 cites·14 claims
- 4869US7565942B2Vehicle drive control system and methodDENSO CORP·Filed 2007·Granted Jul 28, 2009·11 cites·10 claims
- 4966US6085518AAir-fuel ratio feedback control for enginesDENSO CORP·Filed 1998·Granted Jul 11, 2000·23 cites·12 claims
- 5066US5579637AAir-fuel ratio control apparatus for engineNIPPON DENSO CO·Filed 1995·Granted Dec 3, 1996·24 cites·11 claims
Showing the top 50 of 85 patent records by PatentIndex Score.
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