Inventor
YAMAKAWA MASAHISA
JP41 patents
⚠️ This page may combine multiple inventors who share the name “YAMAKAWA MASAHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MAZDA MOTOR
23 patentsUS6968825B2Nov 29, 2005
Control device for spark-ignition engine
MAZDA MOTOR70 citations97
US9932883B2Apr 3, 2018
Spark-ignition direct-injection engine
MAZDA MOTOR21 citations94
US7650872B2Jan 26, 2010
Internal combustion engine
MAZDA MOTOR9 citations84
US7784443B2Aug 31, 2010
Spark-ignition gasoline engine
MAZDA MOTOR12 citations83
US7484498B2Feb 3, 2009
Spark-ignition gasoline engine
MAZDA MOTOR15 citations83
US7360531B2Apr 22, 2008
Combustion chamber structure for spark-ignition engine
MAZDA MOTOR18 citations83
US9702316B2Jul 11, 2017
Spark-ignition direct injection engine
MAZDA MOTOR8 citations82
US11008969B2May 18, 2021
Compression ignition gasoline engine
MAZDA MOTOR6 citations72
US10837380B2Nov 17, 2020
Compression ignition gasoline engine
MAZDA MOTOR6 citations72
US6928980B2Aug 16, 2005
Control device for spark-ignition engine
MAZDA MOTOR2 citations63
US10309294B2Jun 4, 2019
Engine
MAZDA MOTOR1 citations59
US10041464B2Aug 7, 2018
Controller of laser ignition engine
MAZDA MOTOR0 citations52
US9255539B2Feb 9, 2016
Spark-ignition direct injection engine
MAZDA MOTOR1 citations52
US9777694B2Oct 3, 2017
Control device of engine
MAZDA MOTOR1 citations51
US9470174B2Oct 18, 2016
Control system and control method of spark ignition gasoline engine
MAZDA MOTOR1 citations51
US11092108B2Aug 17, 2021
Control device for compression self-ignition engine
MAZDA MOTOR0 citations50
US11591983B2Feb 28, 2023
Engine system
MAZDA MOTOR0 citations49
US11542886B2Jan 3, 2023
Engine system
MAZDA MOTOR0 citations49
US11391235B2Jul 19, 2022
Engine system
MAZDA MOTOR0 citations49
US11835001B1Dec 5, 2023
Engine control system
MAZDA MOTOR0 citations45
US9261041B2Feb 16, 2016
Spark-ignition direct injection engine
MAZDA MOTOR0 citations41
US9145843B2Sep 29, 2015
Spark-ignition direct injection engine
MAZDA MOTOR0 citations41
US10280831B2May 7, 2019
Engine
MAZDA MOTOR0 citations38
YAMAKAWA MASAHISA
6 patentsUS8783227B2Jul 22, 2014
Engine control method and apparatus
YAMAKAWA MASAHISA12 citations82
US8150597B2Apr 3, 2012
Method and system for controlling an internal combustion engine
YAMAKAWA MASAHISA8 citations82
US9512814B2Dec 6, 2016
Control method of spark ignition engine and spark ignition engine
YAMAKAWA MASAHISA6 citations72
US8459021B2Jun 11, 2013
Method and apparatus for controlling supercharged engine
YAMAKAWA MASAHISA6 citations71
US8316819B2Nov 27, 2012
Control of spark ignited internal combustion engine
YAMAKAWA MASAHISA4 citations62
US8402749B2Mar 26, 2013
Control method of spark-ignition engine and spark-ignition engine system
YAMAKAWA MASAHISA1 citations51