Inventor
OSO HIROKI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “OSO HIROKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KUBOTA KK
16 patentsUS10132215B2Nov 20, 2018
Engine lubricating device
KUBOTA KK4 citations72
US10323675B2Jun 18, 2019
Device with adjustment bolt
KUBOTA KK4 citations71
US10161353B2Dec 25, 2018
Piston for engine
KUBOTA KK3 citations71
US10018147B2Jul 10, 2018
Piston for engine
KUBOTA KK5 citations71
US10415443B2Sep 17, 2019
Engine
KUBOTA KK1 citations61
US10982576B2Apr 20, 2021
Engine that includes blow-by-gas returning system
KUBOTA KK0 citations60
US11371414B2Jun 28, 2022
Exhaust system for engine
KUBOTA KK0 citations51
US10669903B2Jun 2, 2020
Oil cooling structure of engine
KUBOTA KK0 citations51
US10641200B2May 5, 2020
Cooling structure of water-cooled engine
KUBOTA KK0 citations51
US11378001B2Jul 5, 2022
Electronic fuel injection type diesel engine
KUBOTA KK0 citations50
US11781501B2Oct 10, 2023
Engine head structure
KUBOTA KK0 citations48
US12085010B2Sep 10, 2024
Electronic fuel injection type diesel engine
KUBOTA KK0 citations45
US11261780B2Mar 1, 2022
Engine equipped with supercharger
KUBOTA KK0 citations45
US12366221B2Jul 22, 2025
Fuel injection system
KUBOTA KK0 citations44
US12221936B2Feb 11, 2025
Diesel engine, diesel engine manufacturing method, and diesel engine injection-amount correction system
KUBOTA KK0 citations44
US10815911B2Oct 27, 2020
Engine stopping device
KUBOTA KK0 citations41