P

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 patents
US6058700AMay 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 patents