Inventor
FUKUMA MASAKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “FUKUMA MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MAZDA MOTOR
15 patentsUS5381764AJan 17, 1995
Valve timing controller for use with internal combustion engine
MAZDA MOTOR45 citations91
US5367991ANov 29, 1994
Valve operating system of engine
MAZDA MOTOR12 citations73
US10578149B2Mar 3, 2020
Connecting rod of engine
MAZDA MOTOR2 citations71
US5329895AJul 19, 1994
System for controlling valve shift timing of an engine
MAZDA MOTOR18 citations71
US9791045B2Oct 17, 2017
Oil ring
MAZDA MOTOR2 citations68
US6860247B2Mar 1, 2005
Engine variable valve timing system
MAZDA MOTOR4 citations62
US11041457B2Jun 22, 2021
Combustion chamber structure for engines
MAZDA MOTOR1 citations61
US11512663B2Nov 29, 2022
Engine with combustion chamber
MAZDA MOTOR0 citations50
US11149682B2Oct 19, 2021
Combustion chamber structure for engines
MAZDA MOTOR0 citations50
US11118499B2Sep 14, 2021
Combustion chamber structure for engines
MAZDA MOTOR0 citations50
US11073102B2Jul 27, 2021
Combustion chamber structure for engines
MAZDA MOTOR0 citations50
US10605328B2Mar 31, 2020
Counterweight, and crankshaft with the counterweight
MAZDA MOTOR1 citations50
US11015515B2May 25, 2021
Combustion chamber structure for engine
MAZDA MOTOR0 citations49
US6820580B2Nov 23, 2004
Valve driving device for engine
MAZDA MOTOR0 citations41
US10851702B2Dec 1, 2020
Combustion chamber structure for engine
MAZDA MOTOR0 citations38