Inventor · disambiguated record
Kazuhiro Wakao
Also filed as: WAKAO KAZUHIRO
51 granted patents·12 pending applications·306 citations·filing 2002–2023
98Inventor score
Top patents by PatentIndex Score
63 records- 0197US7530335B2Internal combustion engine and starting control device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted May 12, 2009·40 cites·18 claims
- 0295US10184913B2Abnormality diagnosis system of a gas sensorTOYOTA MOTOR CO LTD·Filed 2016·Granted Jan 22, 2019·11 cites·16 claims
- 0395US7159541B2Method and apparatus for determining state of reformerTOYOTA MOTOR CO LTD·Filed 2004·Granted Jan 9, 2007·46 cites·14 claims
- 0491US8302581B2Air-fuel ratio imbalance among cylinders determining apparatus of a multi-cylinder internal combustion engineNISHIKIORI TAKASHI·Filed 2011·Granted Nov 6, 2012·12 cites·6 claims
- 0589US6997142B2Internal combustion engine and method of operating internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Feb 14, 2006·56 cites·20 claims
- 0687US8327622B2Exhaust gas purifying apparatus for internal combustion engineSANO KEISUKE·Filed 2008·Granted Dec 11, 2012·18 cites·6 claims
- 0787US8132450B2Malfunction diagnosis device for exhaust gas purification system and malfunction diagnosis method thereforSHIBATA DAISUKE·Filed 2009·Granted Mar 13, 2012·14 cites·25 claims
- 0885US8245497B2Exhaust emission control device for internal combustion engine and performance diagnosis method for NOx adsorbentYODA KIMIKAZU·Filed 2008·Granted Aug 21, 2012·14 cites·9 claims
- 0984US9753005B2SOx concentration detection deviceTOYOTA MOTOR CO LTD·Filed 2013·Granted Sep 5, 2017·5 cites·3 claims
- 1081US9891188B2Gas concentration detecting deviceTOYOTA MOTOR CO LTD·Filed 2015·Granted Feb 13, 2018·2 cites·14 claims
- 1180US8554446B2Control apparatus for internal combustion engine including variable valve operating mechanismSANO KEISUKE·Filed 2009·Granted Oct 8, 2013·11 cites·8 claims
- 1278US8683853B2Apparatus for detecting abnormality for fuel property detecting apparatusWAKAO KAZUHIRO·Filed 2010·Granted Apr 1, 2014·5 cites·11 claims
- 1376US11319890B2Abnormality detection device for air-fuel ratio detection deviceTOYOTA MOTOR CO LTD·Filed 2021·Granted May 3, 2022·1 cites·4 claims
- 1476US9732659B2SOx concentration detection device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2014·Granted Aug 15, 2017·2 cites·17 claims
- 1575US8763587B2Abnormality detection device for internal combustion engineWAKAO KAZUHIRO·Filed 2010·Granted Jul 1, 2014·4 cites·14 claims
- 1674US8468805B2Exhaust gas purification device and exhaust gas purification method for internal combustion engineWAKAO KAZUHIRO·Filed 2008·Granted Jun 25, 2013·6 cites·17 claims
- 1773US12291985B2Control device of exhaust sensorTOYOTA MOTOR CO LTD·Filed 2023·Granted May 6, 2025·0 cites·6 claims
- 1872US8839769B2Fuel supply system of internal combustion engineSASAI MIE·Filed 2012·Granted Sep 23, 2014·3 cites·7 claims
- 1971US12359602B2SOx concentration acquiring apparatus of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2021·Granted Jul 15, 2025·0 cites·10 claims
- 2071US8141541B2Abnormality detection device for internal combustion engineASO KOJI·Filed 2009·Granted Mar 27, 2012·4 cites·11 claims
- 2170US8656896B2Control apparatus for internal combustion engine and control method for internal combustion engineSASAI MIE·Filed 2011·Granted Feb 25, 2014·3 cites·7 claims
- 2269US8904756B2Exhaust emission control system of internal combustion engineYODA KIMIKAZU·Filed 2009·Granted Dec 9, 2014·5 cites·15 claims
- 2368US10352254B2Internal combustion engine control deviceTOYOTA MOTOR CO LTD·Filed 2014·Granted Jul 16, 2019·2 cites·4 claims
- 2464US8261534B2Exhaust gas purifying apparatus for internal combustion engineSANO KEISUKE·Filed 2008·Granted Sep 11, 2012·5 cites·5 claims
- 2563US8257471B2Exhaust-gas converting apparatusKANAZAWA TAKAAKI·Filed 2008·Granted Sep 4, 2012·2 cites·4 claims
- 2663US2019186326A1SOx CONCENTRATION ACQUIRING APPARATUS OF INTERNAL COMBUSTION ENGINETOYOTA MOTOR CO LTD·Filed 2018·Application pending·0 cites
- 2761US7028655B2Internal combustion engine and method of controlling the sameTOYOTA MOTOR CO LTD·Filed 2004·Granted Apr 18, 2006·8 cites·10 claims
- 2860US11199148B2Control device for exhaust sensorTOYOTA MOTOR CO LTD·Filed 2021·Granted Dec 14, 2021·0 cites·6 claims
- 2960US10934958B2Air-fuel ratio detection device and air-fuel ratio detection methodTOYOTA MOTOR CO LTD·Filed 2019·Granted Mar 2, 2021·0 cites·16 claims
- 3058US9488140B2Intake air volume measuring device for internal combustion engineWAKAO KAZUHIRO·Filed 2012·Granted Nov 8, 2016·1 cites·6 claims
- 3158US8516801B2Exhaust gas purifying apparatus for internal combustion engineSANO KEISUKE·Filed 2008·Granted Aug 27, 2013·4 cites·12 claims
- 3258US7416572B2Apparatus and method for determining reforming catalyst degradationTOYOTA MOTOR CO LTD·Filed 2004·Granted Aug 26, 2008·7 cites·17 claims
- 3356US9851323B2Abnormality determination device of fuel property sensor and method of determining abnormality of the sameAOKI KEIICHIRO·Filed 2014·Granted Dec 26, 2017·0 cites·4 claims
- 3456US8285469B2Control apparatus for internal combustion engine including variable valve operating mechanismSANO KEISUKE·Filed 2008·Granted Oct 9, 2012·3 cites·15 claims
- 3553US9970371B2Control apparatus and control method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2014·Granted May 15, 2018·0 cites·15 claims
- 3652US6769388B2Internal combustion engine intake control apparatus and methodsTOYOTA MOTOR CO LTD·Filed 2002·Granted Aug 3, 2004·10 cites·7 claims
- 3751US11319889B2Abnormality diagnosis system of downstream side air-fuel ratio detection deviceTOYOTA MOTOR CO LTD·Filed 2020·Granted May 3, 2022·0 cites·13 claims
- 3848US7387651B2Fuel reforming device and fuel reforming methodTOYOTA MOTOR CO LTD·Filed 2004·Granted Jun 17, 2008·0 cites·20 claims
- 3948US2019186325A1SOx CONCENTRATION ACQUIRING APPARATUS OF INTERNAL COMBUSTION ENGINETOYOTA MOTOR CO LTD·Filed 2018·Application pending·0 cites
- 4047US2009133388A1Exhaust gas purification apparatus and exhaust gas purification methodTOYOTA MOTOR CO LTD·Filed 2008·Application pending·0 cites
- 4146US2019128834A1Sox index acquisition apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2018·Application pending·0 cites
- 4246US2010043410A1Exhaust gas purifying apparatus for internal combustion engineWAKAO KAZUHIRO·Filed 2008·Application pending·0 cites
- 4345US10794857B2Gas detectorTOYOTA MOTOR CO LTD·Filed 2017·Granted Oct 6, 2020·0 cites·10 claims
- 4445US10605765B2Gas detection deviceTOYOTA MOTOR CO LTD·Filed 2017·Granted Mar 31, 2020·0 cites·7 claims
- 4545US10191007B2Sulfur oxides detection systemTOYOTA MOTOR CO LTD·Filed 2016·Granted Jan 29, 2019·0 cites·11 claims
- 4645US8627650B2Exhaust gas purification device and exhaust gas purification methodSANO KEISUKE·Filed 2009·Granted Jan 14, 2014·0 cites·11 claims
- 4745US7753971B2Fuel reforming apparatusTOYOTA MOTOR CO LTD·Filed 2006·Granted Jul 13, 2010·0 cites·1 claims
- 4845US2018149617A1Gas detector and control method for gas detectorTOYOTA MOTOR CO LTD·Filed 2017·Application pending·0 cites
- 4944US10006380B2Control device for internal combustion engineWAKAO KAZUHIRO·Filed 2012·Granted Jun 26, 2018·0 cites·11 claims
- 5044US9982622B2Control system and control method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2015·Granted May 29, 2018·0 cites·14 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →