Inventor
YOSHIZAKI KOUJI
JP41 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIZAKI KOUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
38 patentsUS6058700AMay 9, 2000
Device for purifying exhaust gas of engine
TOYOTA MOTOR CO LTD162 citations99
US6014859AJan 18, 2000
Device for purifying exhaust gas of engine
TOYOTA MOTOR CO LTD158 citations99
US6233927B1May 22, 2001
Exhaust gas purification device
TOYOTA MOTOR CO LTD97 citations98
US6192675B1Feb 27, 2001
Exhaust gas purification device for an internal combustion engine
TOYOTA MOTOR CO LTD103 citations98
US6166449ADec 26, 2000
Power output apparatus having a battery with a high charge-discharge efficiency
TOYOTA MOTOR CO LTD108 citations98
US6994077B2Feb 7, 2006
Control system for internal combustion engine
TOYOTA MOTOR CO LTD69 citations96
US6152118ANov 28, 2000
Internal combustion engine
TOYOTA MOTOR CO LTD81 citations96
US5966931AOct 19, 1999
Power supply control system for an electrically heated catalytic converter
TOYOTA MOTOR CO LTD68 citations96
US5224335AJul 6, 1993
Exhaust emission control apparatus for internal combustion engine
TOYOTA MOTOR CO LTD67 citations96
US5582805ADec 10, 1996
Electrically heated catalytic apparatus
TOYOTA MOTOR CO LTD69 citations95
US7640728B2Jan 5, 2010
Exhaust gas purification apparatus and exhaust gas purification method for internal combustion engine
TOYOTA MOTOR CO LTD27 citations93
US5537321AJul 16, 1996
Diagnostic apparatus for controlling the operation of a catalytic converter
TOYOTA MOTOR CO LTD39 citations93
US5456063AOct 10, 1995
Secondary air supply apparatus for engine
TOYOTA MOTOR CO LTD23 citations93
US5444978AAug 29, 1995
Catalyst warming up device of an internal combustion engine
TOYOTA MOTOR CO LTD32 citations93
US5323607AJun 28, 1994
Exhaust emission control system and method having improved heating control function for catalyst
TOYOTA MOTOR CO LTD29 citations93
US5235956AAug 17, 1993
Secondary air feed device of an engine
TOYOTA MOTOR CO LTD34 citations93
US6804952B2Oct 19, 2004
Catalyst warm up control for diesel engine
TOYOTA MOTOR CO LTD34 citations92
US6634345B2Oct 21, 2003
Internal combustion engine and method for controlling the internal combustion engine
TOYOTA MOTOR CO LTD24 citations92
US6276130B1Aug 21, 2001
Internal combustion engine
TOYOTA MOTOR CO LTD55 citations92
US6240721B1Jun 5, 2001
Internal combustion engine and method for controlling an internal combustion engine
TOYOTA MOTOR CO LTD51 citations92
US6209515B1Apr 3, 2001
Internal combustion engine, controller and method
TOYOTA MOTOR CO LTD43 citations92
US6101999AAug 15, 2000
Compression ignition type engine
TOYOTA MOTOR CO LTD23 citations92
US5554342ASep 10, 1996
Electrical heating type catalytic device
TOYOTA MOTOR CO LTD23 citations92
US5428955AJul 4, 1995
Device for controlling heating of catalyst for purifying exhaust gas
TOYOTA MOTOR CO LTD26 citations92
US6591818B2Jul 15, 2003
Internal combustion engine and method for recirculating exhaust gas
TOYOTA MOTOR CO LTD18 citations84
US6216676B1Apr 17, 2001
Internal combustion engine system
TOYOTA MOTOR CO LTD16 citations84
US5757164AMay 26, 1998
Apparatus for supplying electric power to electrically heated catalysts attached to the exhaust gas passage of a vehicle
TOYOTA MOTOR CO LTD18 citations83
US4617880AOct 21, 1986
Valve actuating apparatus for optionally resting the operation of a valve in internal combustion engine
TOYOTA MOTOR CO LTD25 citations82
US4611558ASep 16, 1986
Valve actuating apparatus in internal combustion engine
TOYOTA MOTOR CO LTD24 citations82
US5582803ADec 10, 1996
Electrically heated catalytic apparatus
TOYOTA MOTOR CO LTD18 citations81
US6715474B1Apr 6, 2004
Internal combustion engine
TOYOTA MOTOR CO LTD8 citations74
US4612887ASep 23, 1986
Valve actuating apparatus for resting the operation of a valve in internal combustion engine
TOYOTA MOTOR CO LTD17 citations74
US4607600AAug 26, 1986
Valve actuating apparatus in internal combustion engine
TOYOTA MOTOR CO LTD18 citations74
US5851495ADec 22, 1998
Electrically heated catalytic converter for an engine
TOYOTA MOTOR CO LTD10 citations73
US5422082AJun 6, 1995
Electrically heatable catalytic converter
TOYOTA MOTOR CO LTD13 citations72
US7367323B2May 6, 2008
Eight-cylinder engine
TOYOTA MOTOR CO LTD6 citations63
US5800789ASep 1, 1998
Electrically heated catalyst achieving smaller power consumption
TOYOTA MOTOR CO LTD4 citations63
US5573731ANov 12, 1996
Electrically heated catalytic converter for an engine
TOYOTA MOTOR CO LTD5 citations58
NIPPON STEEL CORP
3 patentsUS5618498AApr 8, 1997
Method for brazing heat resisting alloy having on its surface insulating oxide film and preheat type metallic carrier for purification of exhaust gas and process for producing the same
NIPPON STEEL CORP25 citations92
US5971255AOct 26, 1999
Process and apparatus for production of metallic honeycomb body for supporting catalyst
NIPPON STEEL CORP11 citations73
US5902557AMay 11, 1999
Device for purifying exhaust gas of internal combustion engine
NIPPON STEEL CORP8 citations71