Inventor
HOSHI KOICHI
JP48 patents
⚠️ This page may combine multiple inventors who share the name “HOSHI KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
35 patentsUS6321530B1Nov 27, 2001
Exhaust gas purifier and method of purifying exhaust gas for a hybrid vehicle
TOYOTA MOTOR CO LTD95 citations98
US6122910ASep 26, 2000
Exhaust gas purifying apparatus for an internal combustion engine
TOYOTA MOTOR CO LTD89 citations98
US5964088AOct 12, 1999
Device for purifying exhaust gas of engine
TOYOTA MOTOR CO LTD114 citations98
US6253547B1Jul 3, 2001
Apparatus and method for determining amount of unburned fuel component adsorbed by an adsorbent in an internal combustion engine
TOYOTA MOTOR CO LTD61 citations96
US6151890ANov 28, 2000
Exhaust gas purifying apparatus for an internal combustion engine
TOYOTA MOTOR CO LTD63 citations96
US6797517B1Sep 28, 2004
Catalyst degradation detecting device and method thereof in internal combustion engine
TOYOTA MOTOR CO LTD36 citations93
US6370872B1Apr 16, 2002
Exhaust gas purifier for internal combustion engine
TOYOTA MOTOR CO LTD30 citations93
US6324893B1Dec 4, 2001
Diagnostic apparatus and method for adsorbent
TOYOTA MOTOR CO LTD28 citations93
US6321533B1Nov 27, 2001
Exhaust passage switching unit and method for internal combustion engine
TOYOTA MOTOR CO LTD46 citations93
US5979157ANov 9, 1999
Method and a device for purifying exhaust gas of an internal combustion engine
TOYOTA MOTOR CO LTD51 citations93
US7195008B2Mar 27, 2007
Cylinder-by-cylinder air-fuel ratio controller for internal combustion engine
TOYOTA MOTOR CO LTD22 citations92
US7107759B2Sep 19, 2006
Apparatus for reducing hydrocarbon emission of internal combustion engine
TOYOTA MOTOR CO LTD26 citations92
US6401450B1Jun 11, 2002
Catalyst deterioration detector and method of detecting deterioration of catalyst
TOYOTA MOTOR CO LTD21 citations92
US5271223ADec 21, 1993
Exhaust gas purifying device of an engine
TOYOTA MOTOR CO LTD24 citations92
US6128898AOct 10, 2000
Exhaust gas purifying apparatus for internal combustion engine
TOYOTA MOTOR CO LTD27 citations90
US4993392AFeb 19, 1991
Apparatus for controlling heater for heating oxygen sensor
TOYOTA MOTOR CO LTD33 citations90
US10174699B2Jan 8, 2019
Exhaust gas purification system for an internal combustion engine
TOYOTA MOTOR CO LTD9 citations84
US7047727B2May 23, 2006
Rapid catalyst warm-up control device for internal combustion engine
TOYOTA MOTOR CO LTD12 citations84
US7654133B2Feb 2, 2010
Malfunction diagnostic apparatus and malfunction diagnostic method for combustion improvement device
TOYOTA MOTOR CO LTD10 citations82
US6732503B2May 11, 2004
Air/fuel ratio controller for internal combustion engine
TOYOTA MOTOR CO LTD9 citations74
US5823163AOct 20, 1998
Intake air-flow control device for an internal combustion engine
TOYOTA MOTOR CO LTD15 citations74
US5509397AApr 23, 1996
Air supply system preventing backflow
TOYOTA MOTOR CO LTD10 citations74
US10309332B2Jun 4, 2019
Exhaust gas purification system for internal combustion engine
TOYOTA MOTOR CO LTD2 citations73
US9951707B2Apr 24, 2018
Exhaust purification system of internal combustion engine
TOYOTA MOTOR CO LTD2 citations73
US9719451B2Aug 1, 2017
Exhaust purification system of internal combustion engine
TOYOTA MOTOR CO LTD2 citations73
US6945223B2Sep 20, 2005
Failure diagnostic apparatus for intake air stream control device and control method of failure diagnostic apparatus
TOYOTA MOTOR CO LTD5 citations63
US6729305B2May 4, 2004
Fuel injection amount control apparatus and method for internal combustion engine
TOYOTA MOTOR CO LTD3 citations63
US4043309AAug 23, 1977
Internal combustion engine having auxiliary combustion chamber
TOYOTA MOTOR CO LTD6 citations63
US10563604B2Feb 18, 2020
Control apparatus for internal combustion engine
TOYOTA MOTOR CO LTD1 citations62
US9726101B2Aug 8, 2017
Exhaust purification system of internal combustion engine
TOYOTA MOTOR CO LTD1 citations52
US7299788B2Nov 27, 2007
Internal combustion engine and method of detecting abnormality of internal combustion engine
TOYOTA MOTOR CO LTD0 citations52
US10781765B2Sep 22, 2020
Control system of internal combustion engine
TOYOTA MOTOR CO LTD0 citations42
US7836683B2Nov 23, 2010
Control apparatus and method for internal combustion engine
TOYOTA MOTOR CO LTD0 citations42
US7853399B2Dec 14, 2010
Internal combustion engine control apparatus and method
TOYOTA MOTOR CO LTD0 citations41
US8000886B2Aug 16, 2011
Control device for internal combustion engine
TOYOTA MOTOR CO LTD0 citations39
HOSHI KOICHI
4 patentsUS9057331B2Jun 16, 2015
Control device for internal combustion engine
HOSHI KOICHI9 citations82
US8099954B2Jan 24, 2012
Exhaust manifold
HOSHI KOICHI3 citations61
US8560170B2Oct 15, 2013
Method for estimating amount of heat received by refrigerant and controller
HOSHI KOICHI0 citations50
US9239018B2Jan 19, 2016
Fuel control apparatus for internal combustion engine
HOSHI KOICHI0 citations40