Inventor
ITO TOKIJI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “ITO TOKIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
23 patentsUS7409929B2Aug 12, 2008
Cooling apparatus for internal combustion engine
TOYOTA MOTOR CO LTD31 citations92
US7284530B2Oct 23, 2007
Leak detector for fuel vapor purge system
TOYOTA MOTOR CO LTD26 citations92
US6848298B2Feb 1, 2005
Apparatus and method for failure diagnosis of fuel vapor purge system
TOYOTA MOTOR CO LTD20 citations92
US6722348B2Apr 20, 2004
Abnormality detecting apparatus for fuel vapor treating system and method for controlling the apparatus
TOYOTA MOTOR CO LTD41 citations92
US6564780B2May 20, 2003
Diagnostic apparatus and method for fuel vapor purge system
TOYOTA MOTOR CO LTD31 citations92
US6557401B2May 6, 2003
Method and apparatus for detecting abnormalities in fuel systems
TOYOTA MOTOR CO LTD23 citations92
US6006707ADec 28, 1999
Valve timing control apparatus for an internal combustion engine
TOYOTA MOTOR CO LTD37 citations92
US5629477AMay 13, 1997
Testing apparatus for fuel vapor treating device
TOYOTA MOTOR CO LTD32 citations92
US6698280B1Mar 2, 2004
Failure test apparatus for fuel-vapor purging system
TOYOTA MOTOR CO LTD35 citations91
US5718210AFeb 17, 1998
Testing apparatus for fuel vapor treating device
TOYOTA MOTOR CO LTD21 citations91
US6820471B2Nov 23, 2004
Engine system diagnosing apparatus and method
TOYOTA MOTOR CO LTD14 citations84
US5771869AJun 30, 1998
Malfunction determining apparatus of an exhaust gas recirculation system
TOYOTA MOTOR CO LTD19 citations84
US7325447B2Feb 5, 2008
Cooling apparatus for internal combustion engine and diagnosis method for the cooling apparatus
TOYOTA MOTOR CO LTD10 citations83
US6487892B1Dec 3, 2002
Fault detection apparatus and method for fuel vapor purge system
TOYOTA MOTOR CO LTD18 citations82
US6606551B2Aug 12, 2003
Malfunction determining apparatus of engine system
TOYOTA MOTOR CO LTD9 citations74
US5943999AAug 31, 1999
Malfunction determining apparatus of an exhaust gas recirculation system
TOYOTA MOTOR CO LTD10 citations74
US9752523B2Sep 5, 2017
Air-fuel ratio control apparatus for internal combustion engine
TOYOTA MOTOR CO LTD3 citations72
US7730860B2Jun 8, 2010
Actuator control apparatus and method
TOYOTA MOTOR CO LTD2 citations63
US7073321B2Jul 11, 2006
Controller for internal combustion engine
TOYOTA MOTOR CO LTD5 citations63
US6634219B2Oct 21, 2003
Abnormality testing apparatus for engine system
TOYOTA MOTOR CO LTD4 citations63
US6519524B2Feb 11, 2003
Apparatus and method for monitoring start of engine
TOYOTA MOTOR CO LTD4 citations63
US8050850B2Nov 1, 2011
Control apparatus and control method for internal combustion engine
TOYOTA MOTOR CO LTD1 citations45
US7104046B2Sep 12, 2006
Controller for an internal combustion engine
TOYOTA MOTOR CO LTD0 citations42
DENSO CORP
2 patentsUS7165447B2Jan 23, 2007
Failure diagnostic apparatus for fuel vapor purge system and fuel vapor purge apparatus and combustion engine having failure diagnostic apparatus
DENSO CORP14 citations83
US7165446B2Jan 23, 2007
Failure diagnostic apparatus for fuel vapor purge system and fuel vapor purge apparatus and combustion engine having failure diagnostic apparatus
DENSO CORP6 citations62