Inventor
SUGIYAMA TOSHIHISA
JP17 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA TOSHIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
13 patentsUS6829891B2Dec 14, 2004
Exhaust emission control device and method of controlling exhaust emission
TOYOTA MOTOR CO LTD26 citations92
US5186005AFeb 16, 1993
Internal combustion engine with a dual turbocharger system
TOYOTA MOTOR CO LTD39 citations92
US5081842AJan 21, 1992
Internal combustion engine with a dual turbocharger system
TOYOTA MOTOR CO LTD26 citations92
US5277029AJan 11, 1994
Internal combustion engine with a dual turbocharger system
TOYOTA MOTOR CO LTD32 citations91
US5190015AMar 2, 1993
Evaporated fuel discharge suppressing apparatus for an internal combustion engine
TOYOTA MOTOR CO LTD35 citations91
US6945036B2Sep 20, 2005
Exhaust emission control filter and method of controlling exhaust emission
TOYOTA MOTOR CO LTD15 citations83
US4369753AJan 25, 1983
Pressure mediated diesel engine exhaust gas recirculation control system
TOYOTA MOTOR CO LTD21 citations81
US5144803ASep 8, 1992
Internal combustion engine with a dual turbocharger system
TOYOTA MOTOR CO LTD15 citations74
US8347846B2Jan 8, 2013
Control device for internal combustion engine
TOYOTA MOTOR CO LTD6 citations71
US5168707ADec 8, 1992
Internal combustion engine with a dual turbocharger system
TOYOTA MOTOR CO LTD14 citations71
US5154057AOct 13, 1992
Internal combustion engine with a dual turbocharger system
TOYOTA MOTOR CO LTD15 citations69
US7971427B2Jul 5, 2011
Exhaust gas purifying apparatus for internal combustion engine
TOYOTA MOTOR CO LTD5 citations62
US10107148B2Oct 23, 2018
Valve rotation device
TOYOTA MOTOR CO LTD0 citations41