Inventor
SONODA YUKIHIRO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “SONODA YUKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
15 patentsUS6837040B2Jan 4, 2005
In-cylinder injection type spark-ignition internal combustion engine and control method thereof
TOYOTA MOTOR CO LTD74 citations97
US5088281AFeb 18, 1992
Method and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor system
TOYOTA MOTOR CO LTD111 citations95
US5027784AJul 2, 1991
PCV system with a check valve device
TOYOTA MOTOR CO LTD71 citations95
US7174883B2Feb 13, 2007
Intake-negative-pressure-increasing apparatus for engine
TOYOTA MOTOR CO LTD34 citations92
US7150266B2Dec 19, 2006
Method of controlling air fuel ratio learning for dual injection internal combustion engine in hybrid vehicle
TOYOTA MOTOR CO LTD20 citations92
US7273043B2Sep 25, 2007
Control device of internal combustion engine
TOYOTA MOTOR CO LTD6 citations73
US7234447B2Jun 26, 2007
Control device of internal combustion engine
TOYOTA MOTOR CO LTD9 citations73
US4981122AJan 1, 1991
Fuel injection control device of an engine
TOYOTA MOTOR CO LTD7 citations73
US4976242ADec 11, 1990
Fuel injection control device of an engine
TOYOTA MOTOR CO LTD7 citations73
US4949693AAug 21, 1990
Fuel injection control device of an engine
TOYOTA MOTOR CO LTD14 citations73
US4915078AApr 10, 1990
Fuel injection control device of an internal combustion engine
TOYOTA MOTOR CO LTD10 citations73
US4991559AFeb 12, 1991
Fuel injection control device of an engine
TOYOTA MOTOR CO LTD8 citations71
US7814743B2Oct 19, 2010
Control apparatus for internal combustion engine
TOYOTA MOTOR CO LTD4 citations63
US5018494AMay 28, 1991
Idling speed control device of an engine
TOYOTA MOTOR CO LTD4 citations62
USRE42631EAug 23, 2011
Method of controlling air fuel ratio learning for dual injection internal combustion engine in hybrid vehicle
TOYOTA MOTOR CO LTD1 citations52