Inventor
IWATA YOICHI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “IWATA YOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HONDA MOTOR CO LTD
20 patentsUS5325664AJul 5, 1994
System for determining deterioration of catalysts of internal combustion engines
HONDA MOTOR CO LTD141 citations97
US5655363AAug 12, 1997
Air-fuel ratio control system for internal combustion engines
HONDA MOTOR CO LTD91 citations96
US6352489B1Mar 5, 2002
Engine control system for hybrid vehicle
HONDA MOTOR CO LTD49 citations93
US5388454AFeb 14, 1995
Device for detecting deterioration of a catalyst temperature sensor
HONDA MOTOR CO LTD23 citations93
US5182907AFeb 2, 1993
System for monitoring performance of HC sensors for internal combustion engines
HONDA MOTOR CO LTD24 citations93
US5179833AJan 19, 1993
System for detecting deterioration of a three-way catalyst of an internal combustion engine
HONDA MOTOR CO LTD24 citations93
US5485382AJan 16, 1996
Oxygen sensor deterioration-detecting system for internal combustion engines
HONDA MOTOR CO LTD52 citations92
US5437154AAug 1, 1995
Misfire-detecting system for internal combustion engines
HONDA MOTOR CO LTD22 citations92
US5416710AMay 16, 1995
Method of detecting deterioration of a three-way catalyst of an internal combustion engine
HONDA MOTOR CO LTD25 citations92
US5396766AMar 14, 1995
Abnormality-detecting device for internal combustion engines
HONDA MOTOR CO LTD26 citations92
US5386695AFeb 7, 1995
Air-fuel ratio control system for internal combustion engines, having catalytic converter deterioration-detecting function
HONDA MOTOR CO LTD27 citations92
US5381657AJan 17, 1995
Catalyst deterioration-detecting system for internal combustion engines
HONDA MOTOR CO LTD25 citations92
US5375416ADec 27, 1994
Air-fuel ratio sensor deterioration-detecting device for internal combustion engines
HONDA MOTOR CO LTD21 citations92
US5355864AOct 18, 1994
Evaporative fuel-processing system for internal combustion engines
HONDA MOTOR CO LTD22 citations92
US5881552AMar 16, 1999
Control system for internal combustion engines and control system for vehicles
HONDA MOTOR CO LTD39 citations91
US5216882AJun 8, 1993
System for detecting deterioration of HC sensors for internal combustion engines
HONDA MOTOR CO LTD20 citations82
US5406789AApr 18, 1995
Air-fuel ratio control system for internal combustion engines
HONDA MOTOR CO LTD11 citations74
US5379591AJan 10, 1995
Air-fuel ratio control system for internal combustion engines
HONDA MOTOR CO LTD17 citations74
US5542248AAug 6, 1996
Air-fuel ratio control system for internal combustion engines
HONDA MOTOR CO LTD8 citations72
US5605041AFeb 25, 1997
Air-fuel ratio control system for internal combustion engines
HONDA MOTOR CO LTD0 citations40
TOYOTA MOTOR CO LTD
7 patentsUS5684248ANov 4, 1997
Device for determining the degree of deterioration of a catalyst
TOYOTA MOTOR CO LTD28 citations92
US5819195AOct 6, 1998
Device for detecting a malfunction of air fuel ratio sensor
TOYOTA MOTOR CO LTD15 citations74
US5461902AOct 31, 1995
Apparatus for thermally controlling an oxygen sensor of internal combustion engine
TOYOTA MOTOR CO LTD16 citations74
US9834211B2Dec 5, 2017
Collison avoidance support device and collision avoidance support method
TOYOTA MOTOR CO LTD4 citations73
US11597401B2Mar 7, 2023
Driving assistance apparatus for erroneous accelerator pedal operation
TOYOTA MOTOR CO LTD3 citations68
US11511765B2Nov 29, 2022
Vehicle control apparatus and method
TOYOTA MOTOR CO LTD2 citations68
US10197672B2Feb 5, 2019
Moving object detection apparatus and drive support apparatus
TOYOTA MOTOR CO LTD0 citations42