Inventor · disambiguated record
Yasushi Iwazaki
Also filed as: IWAZAKI YASUSHI
66 granted patents·10 pending applications·411 citations·filing 2002–2019
99Inventor score
Top patents by PatentIndex Score
76 records- 0196US9903292B2Abnormality diagnosis system of air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 2015·Granted Feb 27, 2018·11 cites·17 claims
- 0296US9624808B2Abnormality diagnosis system of air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 2015·Granted Apr 18, 2017·11 cites·10 claims
- 0395US10184382B2Abnormality diagnosis apparatus for NOx storage reduction catalystTOYOTA MOTOR CO LTD·Filed 2016·Granted Jan 22, 2019·11 cites·4 claims
- 0494US9897028B2Diagnosis system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2013·Granted Feb 20, 2018·11 cites·13 claims
- 0593US10365183B2Abnormality diagnosis system of air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 2013·Granted Jul 30, 2019·11 cites·17 claims
- 0693US10316779B2Abnormality diagnosis system of air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 2014·Granted Jun 11, 2019·11 cites·13 claims
- 0792US10151262B2Abnormality diagnosis system of air-fuel ratio sensorsTOYOTA MOTOR CO LTD·Filed 2014·Granted Dec 11, 2018·11 cites·2 claims
- 0892US9850840B2Diagnosis system of internal combustion engineMIYAMOTO HIROSHI·Filed 2013·Granted Dec 26, 2017·11 cites·17 claims
- 0992US9719449B2Diagnosis system of internal combustion engineMIYAMOTO HIROSHI·Filed 2013·Granted Aug 1, 2017·11 cites·11 claims
- 1092US9599055B2Exhaust gas purification apparatus for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2015·Granted Mar 21, 2017·6 cites·4 claims
- 1192US9021789B2Degradation diagnostic apparatus for NOx catalystSAWADA HIROSHI·Filed 2008·Granted May 5, 2015·19 cites·6 claims
- 1291US8260576B2Exhaust gas sensor abnormality diagnostic deviceIWAZAKI YASUSHI·Filed 2011·Granted Sep 4, 2012·12 cites·2 claims
- 1389US10323596B2Oil dilution rate calculation system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2015·Granted Jun 18, 2019·4 cites·3 claims
- 1489US8510017B2Cylinder-to-cylinder air/fuel ratio imbalance determination system of internal combustion engineSAWADA HIROSHI·Filed 2010·Granted Aug 13, 2013·9 cites·12 claims
- 1589US7751966B2Abnormality diagnostic device and abnormality diagnostic method for air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 2007·Granted Jul 6, 2010·15 cites·18 claims
- 1688US8583348B2Fuel injection amount control system, fuel injection amount control device, and fuel injection amount control method of multi-cylinder internal combustion engineIWAZAKI YASUSHI·Filed 2011·Granted Nov 12, 2013·8 cites·14 claims
- 1788US6711932B2Abnormality diagnosis system and method for oxygen sensorTOYOTA MOTOR CO LTD·Filed 2002·Granted Mar 30, 2004·33 cites·20 claims
- 1886US10302002B2Deterioration diagnosis apparatus for exhaust gas purification apparatusTOYOTA MOTOR CO LTD·Filed 2015·Granted May 28, 2019·5 cites·10 claims
- 1986US9617900B2Deterioration diagnosis device for an exhaust gas purification apparatusTOYOTA MOTOR CO LTD·Filed 2016·Granted Apr 11, 2017·4 cites·3 claims
- 2086US8452517B2Air-fuel ratio imbalance among cylinders determining apparatus for an internal combustion engineSAWADA HIROSHI·Filed 2009·Granted May 28, 2013·16 cites·26 claims
- 2186US8214176B2Exhaust gas sensor abnormality diagnostic deviceIWAZAKI YASUSHI·Filed 2007·Granted Jul 3, 2012·12 cites·7 claims
- 2284US7720595B2Abnormality diagnostic device for air-fuel ratio sensor, and control method for the deviceTOYOTA MOTOR CO LTD·Filed 2008·Granted May 18, 2010·10 cites·20 claims
- 2384US7597091B2Air-fuel ratio control apparatus and method for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2008·Granted Oct 6, 2009·13 cites·4 claims
- 2483US8047064B2Apparatus and method for detecting abnormality of inter-cylinder air-fuel ratio dispersion in multi-cylinder internal combustion engineTOYOTA MOTOR CO LTD·Filed 2009·Granted Nov 1, 2011·13 cites·8 claims
- 2582US9194316B2Inter-cylinder air-fuel ratio imbalance determining apparatus for internal combustion engineMIYAMOTO HIROSHI·Filed 2012·Granted Nov 24, 2015·5 cites·4 claims
- 2681US8700290B2Abnormality determination system for multi-cylinder internal combustion engineMIYAMOTO HIROSHI·Filed 2011·Granted Apr 15, 2014·5 cites·5 claims
- 2780US9328685B2Inter-cylinder air-fuel ratio variation abnormality detection apparatus for multicylinder internal combustion engineSUZUKI KENJI·Filed 2014·Granted May 3, 2016·4 cites·8 claims
- 2878US9611776B2Deterioration diagnosis device for an exhaust gas purification apparatusTOYOTA MOTOR CO LTD·Filed 2015·Granted Apr 4, 2017·2 cites·4 claims
- 2977US9435279B2Inter-cylinder air-fuel ratio variation abnormality detection apparatusIWAZAKI YASUSHI·Filed 2014·Granted Sep 6, 2016·3 cites·12 claims
- 3077US9115661B2Fuel injection amount control system and fuel injection amount control device for multi-cylinder internal combustion engineIWAZAKI YASUSHI·Filed 2011·Granted Aug 25, 2015·4 cites·1 claims
- 3177US8670917B2Air-fuel-ratio imbalance determination apparatus for internal combustion engineAOKI KEIICHIRO·Filed 2009·Granted Mar 11, 2014·9 cites·14 claims
- 3277US8560208B2Inter-cylinder air-fuel ratio imbalance determination apparatus for internal combustion engineMIYAMOTO HIROSHI·Filed 2009·Granted Oct 15, 2013·9 cites·16 claims
- 3377US8401766B2Inter-cylinder air-fuel ratio imbalance determination apparatus for internal combustion engineIWAZAKI YASUSHI·Filed 2009·Granted Mar 19, 2013·9 cites·12 claims
- 3477US8024105B2Apparatus and method for detecting abnormal air-fuel ratio variation among cylinders of multi-cylinder internal combustion engineTOYOTA MOTOR CO LTD·Filed 2009·Granted Sep 20, 2011·7 cites·14 claims
- 3576US8744729B2Apparatus and method for detecting abnormal air-fuel ratio variation among cylinders of multi-cylinder internal combustion engineIWAZAKI YASUSHI·Filed 2008·Granted Jun 3, 2014·8 cites·27 claims
- 3673US9194315B2Air-fuel ratio imbalance among cylinders determining apparatus for an internal combustion engineIWAZAKI YASUSHI·Filed 2009·Granted Nov 24, 2015·3 cites·3 claims
- 3772US9903297B2Control system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2015·Granted Feb 27, 2018·1 cites·20 claims
- 3872US8649956B2Apparatus for acquiring responsibility of oxygen concentration sensorKAWAMURA YUSUKE·Filed 2011·Granted Feb 11, 2014·4 cites·8 claims
- 3971US8249794B2Inter-cylinder air-fuel ratio imbalance judgment device for multi-cylinder internal combustion engineMIYAMOTO HIROSHI·Filed 2009·Granted Aug 21, 2012·7 cites·9 claims
- 4071US7434450B2Method and apparatus for detecting exhaust gas sensor defectTOYOTA MOTOR CO LTD·Filed 2006·Granted Oct 14, 2008·3 cites·17 claims
- 4170US10072553B2Deterioration diagnosis apparatus for selective catalytic reduction catalystTOYOTA MOTOR CO LTD·Filed 2016·Granted Sep 11, 2018·1 cites·9 claims
- 4270US7725247B2Abnormality diagnostic device and abnormality diagnostic method for air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 2008·Granted May 25, 2010·6 cites·22 claims
- 4369US8452521B2Inter-cylinder air-fuel ratio imbalance determination apparatus for an internal combustion engineIWAZAKI YASUSHI·Filed 2009·Granted May 28, 2013·6 cites·18 claims
- 4469US8370043B2Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2009·Granted Feb 5, 2013·6 cites·7 claims
- 4568US8447497B2Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engineIWAZAKI YASUSHI·Filed 2009·Granted May 21, 2013·5 cites·10 claims
- 4666US8826642B2Device for purifying exhaust gas of internal combustion engineAISAKA TAKEHO·Filed 2010·Granted Sep 9, 2014·3 cites·5 claims
- 4766US8509984B2Monitoring apparatus for a multi-cylinder internal combustion engineKIDOKORO TORU·Filed 2009·Granted Aug 13, 2013·6 cites·15 claims
- 4865US10626819B2Diagnosis system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2018·Granted Apr 21, 2020·0 cites·6 claims
- 4961US8965665B2Air-fuel ratio imbalance determining apparatus among cylinders for an internal combustion engineIWAZAKI YASUSHI·Filed 2009·Granted Feb 24, 2015·4 cites·7 claims
- 5061US8534046B2Apparatus and method for diagnosing catalyst deteriorationMIYAMOTO HIROSHI·Filed 2009·Granted Sep 17, 2013·4 cites·8 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
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