Inventor
WAKAO KAZUHIRO
JP51 patents
⚠️ This page may combine multiple inventors who share the name “WAKAO KAZUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
29 patentsUS6997142B2Feb 14, 2006
Internal combustion engine and method of operating internal combustion engine
TOYOTA MOTOR CO LTD56 citations96
US7530335B2May 12, 2009
Internal combustion engine and starting control device of internal combustion engine
TOYOTA MOTOR CO LTD40 citations93
US7159541B2Jan 9, 2007
Method and apparatus for determining state of reformer
TOYOTA MOTOR CO LTD46 citations93
US10184913B2Jan 22, 2019
Abnormality diagnosis system of a gas sensor
TOYOTA MOTOR CO LTD11 citations83
US7416572B2Aug 26, 2008
Apparatus and method for determining reforming catalyst degradation
TOYOTA MOTOR CO LTD7 citations74
US7028655B2Apr 18, 2006
Internal combustion engine and method of controlling the same
TOYOTA MOTOR CO LTD8 citations74
US6769388B2Aug 3, 2004
Internal combustion engine intake control apparatus and methods
TOYOTA MOTOR CO LTD10 citations74
US10352254B2Jul 16, 2019
Internal combustion engine control device
TOYOTA MOTOR CO LTD2 citations73
US9891188B2Feb 13, 2018
Gas concentration detecting device
TOYOTA MOTOR CO LTD2 citations73
US9753005B2Sep 5, 2017
SOx concentration detection device
TOYOTA MOTOR CO LTD5 citations72
US9732659B2Aug 15, 2017
SOx concentration detection device of internal combustion engine
TOYOTA MOTOR CO LTD2 citations71
US11199148B2Dec 14, 2021
Control device for exhaust sensor
TOYOTA MOTOR CO LTD0 citations62
US10934958B2Mar 2, 2021
Air-fuel ratio detection device and air-fuel ratio detection method
TOYOTA MOTOR CO LTD0 citations62
US12291985B2May 6, 2025
Control device of exhaust sensor
TOYOTA MOTOR CO LTD0 citations60
US11319890B2May 3, 2022
Abnormality detection device for air-fuel ratio detection device
TOYOTA MOTOR CO LTD1 citations60
US7150769B2Dec 19, 2006
Fuel reforming apparatus and method
TOYOTA MOTOR CO LTD2 citations57
US12359602B2Jul 15, 2025
SOx concentration acquiring apparatus of internal combustion engine
TOYOTA MOTOR CO LTD0 citations52
US7753971B2Jul 13, 2010
Fuel reforming apparatus
TOYOTA MOTOR CO LTD0 citations52
US7387651B2Jun 17, 2008
Fuel reforming device and fuel reforming method
TOYOTA MOTOR CO LTD0 citations52
US9970371B2May 15, 2018
Control apparatus and control method for internal combustion engine
TOYOTA MOTOR CO LTD0 citations51
US11319889B2May 3, 2022
Abnormality diagnosis system of downstream side air-fuel ratio detection device
TOYOTA MOTOR CO LTD0 citations50
US10794857B2Oct 6, 2020
Gas detector
TOYOTA MOTOR CO LTD0 citations42
US10712323B2Jul 14, 2020
Control device for gas detector and control method for gas detector
TOYOTA MOTOR CO LTD0 citations42
US10690629B2Jun 23, 2020
Gas detection device
TOYOTA MOTOR CO LTD0 citations42
US10605765B2Mar 31, 2020
Gas detection device
TOYOTA MOTOR CO LTD0 citations42
US10444181B2Oct 15, 2019
Sulfur oxide detection system
TOYOTA MOTOR CO LTD0 citations42
US10191007B2Jan 29, 2019
Sulfur oxides detection system
TOYOTA MOTOR CO LTD0 citations42
US10551364B2Feb 4, 2020
Control system and control method for internal combustion engine
TOYOTA MOTOR CO LTD0 citations41
US9982622B2May 29, 2018
Control system and control method for internal combustion engine
TOYOTA MOTOR CO LTD0 citations41
SANO KEISUKE
6 patentsUS8554446B2Oct 8, 2013
Control apparatus for internal combustion engine including variable valve operating mechanism
SANO KEISUKE11 citations83
US8327622B2Dec 11, 2012
Exhaust gas purifying apparatus for internal combustion engine
SANO KEISUKE18 citations83
US8285469B2Oct 9, 2012
Control apparatus for internal combustion engine including variable valve operating mechanism
SANO KEISUKE3 citations62
US8516801B2Aug 27, 2013
Exhaust gas purifying apparatus for internal combustion engine
SANO KEISUKE4 citations61
US8261534B2Sep 11, 2012
Exhaust gas purifying apparatus for internal combustion engine
SANO KEISUKE5 citations61
US8627650B2Jan 14, 2014
Exhaust gas purification device and exhaust gas purification method
SANO KEISUKE0 citations40
WAKAO KAZUHIRO
5 patentsUS8468805B2Jun 25, 2013
Exhaust gas purification device and exhaust gas purification method for internal combustion engine
WAKAO KAZUHIRO6 citations71
US8763587B2Jul 1, 2014
Abnormality detection device for internal combustion engine
WAKAO KAZUHIRO4 citations70
US8683853B2Apr 1, 2014
Apparatus for detecting abnormality for fuel property detecting apparatus
WAKAO KAZUHIRO5 citations70
US9488140B2Nov 8, 2016
Intake air volume measuring device for internal combustion engine
WAKAO KAZUHIRO1 citations51
US8656773B2Feb 25, 2014
Rationality diagnostic device for alcohol concentration sensor
WAKAO KAZUHIRO0 citations49
YODA KIMIKAZU
2 patentsSASAI MIE
2 patentsNISHIKIORI TAKASHI
1 patentSHIBATA DAISUKE
1 patentASO KOJI
1 patentKANAZAWA TAKAAKI
1 patentAOKI KEIICHIRO
1 patentYOSHIDA SHUNTARO
1 patentShowing the top 50 of 51 patents by PatentIndex Score.