Inventor
YAMAGUCHI MASAAKI
JP47 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGUCHI MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
20 patentsUS6922988B2Aug 2, 2005
Exhaust emission control apparatus and method for internal combustion engine
TOYOTA MOTOR CO LTD27 citations92
US7165394B2Jan 23, 2007
Exhaust gas purification system for internal combustion engine
TOYOTA MOTOR CO LTD12 citations84
US11635085B2Apr 25, 2023
Controller of fan coupling device
TOYOTA MOTOR CO LTD2 citations73
US11566558B2Jan 31, 2023
Controller of fan coupling device
TOYOTA MOTOR CO LTD2 citations73
US11434808B2Sep 6, 2022
Controller of fan coupling device
TOYOTA MOTOR CO LTD4 citations73
US10927747B2Feb 23, 2021
Controller for cooling system of internal combustion engine
TOYOTA MOTOR CO LTD3 citations71
US7464542B2Dec 16, 2008
Exhaust gas purification system for internal combustion engine
TOYOTA MOTOR CO LTD2 citations63
US10619554B2Apr 14, 2020
Engine cooling apparatus
TOYOTA MOTOR CO LTD1 citations62
US11359586B2Jun 14, 2022
Hybrid vehicle
TOYOTA MOTOR CO LTD0 citations61
US11035324B2Jun 15, 2021
Vehicle
TOYOTA MOTOR CO LTD1 citations61
US10508588B2Dec 17, 2019
Cooling device for internal combustion engine
TOYOTA MOTOR CO LTD1 citations61
US11028763B2Jun 8, 2021
Engine cooling device
TOYOTA MOTOR CO LTD0 citations52
US11499510B2Nov 15, 2022
Engine system and method of controlling the engine system
TOYOTA MOTOR CO LTD0 citations51
US11199124B2Dec 14, 2021
Cooling apparatus for internal combustion engine
TOYOTA MOTOR CO LTD0 citations51
US11143327B2Oct 12, 2021
Cooling apparatus for internal combustion engine
TOYOTA MOTOR CO LTD0 citations51
US11149705B2Oct 19, 2021
Engine controller and engine control method
TOYOTA MOTOR CO LTD0 citations50
US10961898B2Mar 30, 2021
Cooling controller and control method for cooling device
TOYOTA MOTOR CO LTD0 citations50
US10808597B2Oct 20, 2020
Control device for internal combustion engine
TOYOTA MOTOR CO LTD0 citations41
US10174686B2Jan 8, 2019
Control device and control method for internal combustion engine
TOYOTA MOTOR CO LTD0 citations40
US10851757B2Dec 1, 2020
Ignition timing controller and control method for internal combustion engine
TOYOTA MOTOR CO LTD0 citations39
HONDA MOTOR CO LTD
14 patentsUS6823250B2Nov 23, 2004
Vehicular power-transmission control system
HONDA MOTOR CO LTD26 citations92
US6733299B2May 11, 2004
Vehicular power transmission
HONDA MOTOR CO LTD21 citations92
US6709364B2Mar 23, 2004
Vehicular power-transmission control system
HONDA MOTOR CO LTD20 citations92
US6095942AAug 1, 2000
Speed change control device for vehicular continuously variable transmission
HONDA MOTOR CO LTD51 citations92
US5766110AJun 16, 1998
Starting clutch control system
HONDA MOTOR CO LTD27 citations91
US6244385B1Jun 12, 2001
Lubrication pressure controller
HONDA MOTOR CO LTD34 citations90
US6776739B2Aug 17, 2004
Vehicular power-transmission control system
HONDA MOTOR CO LTD19 citations84
US6533081B2Mar 18, 2003
Brake fluid pressure retaining apparatus
HONDA MOTOR CO LTD18 citations82
US6761659B2Jul 13, 2004
Method for controlling engagement of frictionally engaging element in power transmission
HONDA MOTOR CO LTD7 citations72
US6702715B2Mar 9, 2004
Power transmission
HONDA MOTOR CO LTD6 citations63
US6702716B2Mar 9, 2004
Power transmission
HONDA MOTOR CO LTD5 citations63
US6973379B2Dec 6, 2005
Continuously variable transmission control apparatus
HONDA MOTOR CO LTD4 citations61
US7074148B2Jul 11, 2006
Hydraulic controller of power transmission device
HONDA MOTOR CO LTD4 citations59
US6527669B2Mar 4, 2003
Hydraulic control apparatus for a vehicular automatic transmission
HONDA MOTOR CO LTD1 citations51