Inventor
OKA DAISUKE
JP9 patents
⚠️ This page may combine multiple inventors who share the name “OKA DAISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD
5 patentsUS11332911B2May 17, 2022
Construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD4 citations72
US11280059B2Mar 22, 2022
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD2 citations72
US10676897B2Jun 9, 2020
Construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD2 citations72
US10995473B2May 4, 2021
Construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD1 citations62
US11111650B2Sep 7, 2021
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD0 citations51