Inventor
OISHI KIYOHIKO
17 patents
⚠️ This page may combine multiple inventors who share the name “OISHI KIYOHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
13 patentsUS4667636AMay 26, 1987
Fuel injection type internal combustion engine
TOYOTA MOTOR CO LTD59 citations96
US4404795ASep 20, 1983
Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine
TOYOTA MOTOR CO LTD143 citations95
US4549398AOct 29, 1985
Exhaust gas cleaning device for diesel engines
TOYOTA MOTOR CO LTD55 citations94
US5155994AOct 20, 1992
Exhaust gas purification system for an internal combustion engine
TOYOTA MOTOR CO LTD43 citations92
US5141906AAug 25, 1992
Catalyst for purifying exhaust gas
TOYOTA MOTOR CO LTD29 citations92
US4538412ASep 3, 1985
Exhaust gas cleaning device for diesel engines
TOYOTA MOTOR CO LTD28 citations90
US5294421AMar 15, 1994
Method for catalytically purifying exhaust gas
TOYOTA MOTOR CO LTD17 citations74
US4272460AJun 9, 1981
Variable venturi type carburetor
TOYOTA MOTOR CO LTD8 citations74
US4264537AApr 28, 1981
Variable venturi type carburetor
TOYOTA MOTOR CO LTD11 citations74
US4608948ASep 2, 1986
Air intake device of an internal combustion engine
TOYOTA MOTOR CO LTD12 citations73
US4574748AMar 11, 1986
Air intake device of an internal combustion engine
TOYOTA MOTOR CO LTD13 citations73
US4110979ASep 5, 1978
Apparatus for introducing secondary air into an exhaust system of an internal combustion engine
TOYOTA MOTOR CO LTD5 citations63
US4063536ADec 20, 1977
Apparatus for feeding water into the air/fuel mixture passage of an internal combustion engine
TOYOTA MOTOR CO LTD5 citations62
NIPPON SOKEN
4 patentsUS4485622ADec 4, 1984
Exhaust gas cleaning device for internal combustion engine
NIPPON SOKEN74 citations96
US4386497AJun 7, 1983
Exhaust gas cleaning device for internal combustion engine
NIPPON SOKEN37 citations92
US4404798ASep 20, 1983
Exhaust gas cleaning device for internal combustion engine
NIPPON SOKEN21 citations82
US4242997AJan 6, 1981
Exhaust gas recirculation system for internal combustion engines
NIPPON SOKEN11 citations74