P

Inventor

AOKI KEIICHIRO

JP113 patents
⚠️ This page may combine multiple inventors who share the name “AOKI KEIICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYOTA MOTOR CO LTD

31 patents
US6286493B1Sep 11, 2001

Control device for an air-fuel ratio sensor

TOYOTA MOTOR CO LTD23 citations93
US6205989B1Mar 27, 2001

Control device for air-fuel radio sensor

TOYOTA MOTOR CO LTD20 citations93
US5979406ANov 9, 1999

Knock control device for internal combustion engine

TOYOTA MOTOR CO LTD29 citations93
US5656190AAug 12, 1997

Controller for a heater for an air-fuel ratio sensor and a method thereof

TOYOTA MOTOR CO LTD31 citations93
US5836285ANov 17, 1998

Device for controlling knocking in an internal combustion engine

TOYOTA MOTOR CO LTD28 citations92
US6151954ANov 28, 2000

Device for detecting knocking in an internal combustion engine

TOYOTA MOTOR CO LTD23 citations91
US6343499B1Feb 5, 2002

Air-fuel ratio detecting apparatus and method

TOYOTA MOTOR CO LTD27 citations89
US10365183B2Jul 30, 2019

Abnormality diagnosis system of air-fuel ratio sensor

TOYOTA MOTOR CO LTD11 citations84
US9897028B2Feb 20, 2018

Diagnosis system of internal combustion engine

TOYOTA MOTOR CO LTD11 citations84
US7597091B2Oct 6, 2009

Air-fuel ratio control apparatus and method for an internal combustion engine

TOYOTA MOTOR CO LTD13 citations84
US6382015B1May 7, 2002

Air-fuel ratio sensor resistance detecting apparatus

TOYOTA MOTOR CO LTD15 citations84
US5836292ANov 17, 1998

Heater controller for an air-fuel ratio sensor

TOYOTA MOTOR CO LTD18 citations84
US10184913B2Jan 22, 2019

Abnormality diagnosis system of a gas sensor

TOYOTA MOTOR CO LTD11 citations83
US9528424B2Dec 27, 2016

Malfunction diagnosis device for exhaust gas purification device of internal combustion engine

TOYOTA MOTOR CO LTD14 citations82
US8359841B2Jan 29, 2013

Exhaust purifying apparatus for an internal combustion engine

TOYOTA MOTOR CO LTD10 citations82
US7568477B2Aug 4, 2009

Control system for an exhaust gas sensor

TOYOTA MOTOR CO LTD5 citations74
US5731570AMar 24, 1998

Heater controller for an air-fuel ratio sensor

TOYOTA MOTOR CO LTD9 citations74
US5701877ADec 30, 1997

Heater controller for an air-fuel ratio sensor

TOYOTA MOTOR CO LTD8 citations74
US10001076B2Jun 19, 2018

Control system of internal combustion engine

TOYOTA MOTOR CO LTD2 citations73
US9891188B2Feb 13, 2018

Gas concentration detecting device

TOYOTA MOTOR CO LTD2 citations73
US10598063B2Mar 24, 2020

Exhaust purification system of internal combustion engine

TOYOTA MOTOR CO LTD2 citations72
US9753005B2Sep 5, 2017

SOx concentration detection device

TOYOTA MOTOR CO LTD5 citations72
US6054860AApr 25, 2000

Device for detecting knocking in an internal combustion engine

TOYOTA MOTOR CO LTD7 citations72
US5955664ASep 21, 1999

Device for detecting a state of combustion in an internal combustion engine

TOYOTA MOTOR CO LTD8 citations72
US9732659B2Aug 15, 2017

SOx concentration detection device of internal combustion engine

TOYOTA MOTOR CO LTD2 citations71
US5929322AJul 27, 1999

Device for detecting knocking in an internal combustion engine

TOYOTA MOTOR CO LTD15 citations67
US7850833B2Dec 14, 2010

Oxygen sensor and air/fuel ratio control system

TOYOTA MOTOR CO LTD4 citations63
US7743759B2Jun 29, 2010

Gas sensor controller

TOYOTA MOTOR CO LTD4 citations63
US7698886B2Apr 20, 2010

Catalyst deterioration degree acquiring apparatus in internal combustion engine

TOYOTA MOTOR CO LTD5 citations63
US7591259B2Sep 22, 2009

Control system for an exhaust gas sensor

TOYOTA MOTOR CO LTD2 citations63
US7206714B2Apr 17, 2007

Exhaust gas sensor control device

TOYOTA MOTOR CO LTD2 citations63

AOKI KEIICHIRO

10 patents

IWAZAKI YASUSHI

4 patents

MIYAMOTO HIROSHI

2 patents

TOYOTA JIDOSHA KAISHA

1 patent

JAPAN FINE CERAMICS CT

1 patent

HAYASHITA GO

1 patent

Showing the top 50 of 113 patents by PatentIndex Score.