Inventor
SUGIYAMA TATSUMASA
JP9 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA TATSUMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
8 patentsUS5295472AMar 22, 1994
Apparatus for detecting malfunction in evaporated fuel purge system used in internal combustion engine
TOYOTA MOTOR CO LTD113 citations97
US7299625B2Nov 27, 2007
Exhaust purifying apparatus and exhaust purifying method for internal combustion engine
TOYOTA MOTOR CO LTD45 citations92
US5425344AJun 20, 1995
Diagnostic apparatus for evaporative fuel purge system
TOYOTA MOTOR CO LTD51 citations91
US6763799B2Jul 20, 2004
Internal combustion engine and control method of the same
TOYOTA MOTOR CO LTD40 citations89
US7347043B2Mar 25, 2008
Exhaust gas purifier for internal combustion engine
TOYOTA MOTOR CO LTD16 citations82
US7143756B2Dec 5, 2006
Control device and control method for internal combustion engine
TOYOTA MOTOR CO LTD12 citations80
US7320214B2Jan 22, 2008
Exhaust gas purifier for internal combustion engine
TOYOTA MOTOR CO LTD7 citations71
US7568337B2Aug 4, 2009
Device for detecting state of thermal degradation of exhaust purifying catalyst
TOYOTA MOTOR CO LTD5 citations62