P

Inventor

NAKAGAWA NORIHISA

JP75 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA NORIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYOTA MOTOR CO LTD

38 patents
US6318343B1Nov 20, 2001

Fuel pump control system for an internal combustion engine

TOYOTA MOTOR CO LTD75 citations96
US4667636AMay 26, 1987

Fuel injection type internal combustion engine

TOYOTA MOTOR CO LTD59 citations96
US7059120B2Jun 13, 2006

Device for controlling internal combustion engine

TOYOTA MOTOR CO LTD21 citations93
US6018945AFeb 1, 2000

Air-fuel ratio control device for engine

TOYOTA MOTOR CO LTD20 citations93
US5609141AMar 11, 1997

Evaporative fuel control device

TOYOTA MOTOR CO LTD22 citations93
US5517410AMay 14, 1996

Apparatus for controlling vehicle drive force depending upon vehicle load determined by engine load and vehicle speed

TOYOTA MOTOR CO LTD44 citations93
US5226351AJul 13, 1993

Vehicle transmission shift control apparatus using shift boundary lines based on vehicle speed, and engine intake air quantity or throttle or accelerator operation amount

TOYOTA MOTOR CO LTD31 citations93
US4570590AFeb 18, 1986

Internal combustion engine with multiple intake valves

TOYOTA MOTOR CO LTD26 citations92
US4856473AAug 15, 1989

Internal combustion engine with multiple intake valves and EGR arrangement

TOYOTA MOTOR CO LTD51 citations90
US7474956B2Jan 6, 2009

Air-fuel ratio control system of internal combustion engine

TOYOTA MOTOR CO LTD9 citations84
US7159388B2Jan 9, 2007

Air-fuel ratio control device for internal-combustion engine

TOYOTA MOTOR CO LTD10 citations84
US5836288ANov 17, 1998

Method and apparatus for controlling fuel injection in a multicylinder internal combustion engine

TOYOTA MOTOR CO LTD18 citations84
US8381707B2Feb 26, 2013

Internal combustion engine air-fuel ratio control apparatus and method

TOYOTA MOTOR CO LTD10 citations83
US5226390AJul 13, 1993

Apparatus for controlling variation in torque of internal combustion engine

TOYOTA MOTOR CO LTD20 citations82
US7349791B2Mar 25, 2008

Control apparatus for internal combustion engine

TOYOTA MOTOR CO LTD8 citations74
US5909727AJun 8, 1999

Evaporated fuel treatment device of an engine

TOYOTA MOTOR CO LTD11 citations74
US5834624ANov 10, 1998

Air-fuel ratio detecting device and method therefor

TOYOTA MOTOR CO LTD16 citations74
US5727537AMar 17, 1998

Fuel supply control system for an engine

TOYOTA MOTOR CO LTD16 citations74
US5572980ANov 12, 1996

Fuel supply control system for an engine

TOYOTA MOTOR CO LTD9 citations74
US5341295AAug 23, 1994

Vehicle transmission shift control apparatus having means for suitably determining compensating coefficient used in determining shifting of the transmission

TOYOTA MOTOR CO LTD12 citations74
US5323668AJun 28, 1994

Apparatus for regulating vehicle transmission line pressure based on throttle opening or engine intake air quantity

TOYOTA MOTOR CO LTD10 citations74
US5249484AOct 5, 1993

Apparatus for controlling shifting of vehicle automatic transmission based on engine intake air quantity

TOYOTA MOTOR CO LTD14 citations74
US5156128AOct 20, 1992

Apparatus for controlling variation in torque of internal combustion engine

TOYOTA MOTOR CO LTD18 citations74
US4517941AMay 21, 1985

Air introduction system of a fuel injection type engine

TOYOTA MOTOR CO LTD11 citations74
US10180109B2Jan 15, 2019

Internal combustion engine

TOYOTA MOTOR CO LTD2 citations73
US9856811B2Jan 2, 2018

Internal combustion engine

TOYOTA MOTOR CO LTD2 citations73
US9739225B2Aug 22, 2017

Control system of internal combustion engine

TOYOTA MOTOR CO LTD2 citations73
US9624811B2Apr 18, 2017

Control device of internal combustion engine

TOYOTA MOTOR CO LTD4 citations73
US7204080B2Apr 17, 2007

Air-fuel ratio controller for internal combustion engine

TOYOTA MOTOR CO LTD5 citations63
US10655547B2May 19, 2020

Internal combustion engine

TOYOTA MOTOR CO LTD1 citations62
US10634027B2Apr 28, 2020

Exhaust purification system of internal combustion engine

TOYOTA MOTOR CO LTD1 citations61
US7788903B2Sep 7, 2010

Air-fuel ratio control apparatus of internal combustion engine

TOYOTA MOTOR CO LTD2 citations54
US11225896B1Jan 18, 2022

Degradation diagnosis device for exhaust gas control catalyst

TOYOTA MOTOR CO LTD0 citations52
US11143082B2Oct 12, 2021

Exhaust purification system of internal combustion engine

TOYOTA MOTOR CO LTD0 citations52
US11067020B2Jul 20, 2021

Control device of internal combustion engine, internal combustion engine, and vehicle

TOYOTA MOTOR CO LTD0 citations52
US11047286B2Jun 29, 2021

Exhaust gas control apparatus for internal combustion engine

TOYOTA MOTOR CO LTD0 citations52
US10711720B2Jul 14, 2020

Control system for internal combustion engine

TOYOTA MOTOR CO LTD0 citations52
US10132257B2Nov 20, 2018

Control system of internal combustion engine

TOYOTA MOTOR CO LTD1 citations52

NAKAGAWA NORIHISA

6 patents

NISHIKIORI TAKASHI

3 patents

FUJIWARA TAKAHIKO

2 patents

HAGIMOTO TAIGA

1 patent

Showing the top 50 of 75 patents by PatentIndex Score.