Inventor
TSUKUI HIROSHI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “TSUKUI HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY
5 patentsUS7104548B2Sep 12, 2006
Wheeled type working vehicle
HITACHI CONSTRUCTION MACHINERY16 citations91
US6820877B1Nov 23, 2004
Wheeled type working vehicle
HITACHI CONSTRUCTION MACHINERY23 citations91
US7806214B2Oct 5, 2010
Construction machine
HITACHI CONSTRUCTION MACHINERY24 citations88
US7197872B2Apr 3, 2007
Hydraulic circuit in work vehicle
HITACHI CONSTRUCTION MACHINERY10 citations83
US9260836B2Feb 16, 2016
Earthmoving apparatus for construction machine
HITACHI CONSTRUCTION MACHINERY5 citations67
HITACHI CONSTRUCTION MACH CO
4 patentsUS9624649B2Apr 18, 2017
Wheel type working vehicle
HITACHI CONSTRUCTION MACH CO2 citations68
US12444245B2Oct 14, 2025
Mine management system
HITACHI CONSTRUCTION MACH CO0 citations59
US12572872B2Mar 10, 2026
Mine management system
HITACHI CONSTRUCTION MACH CO0 citations47
US12530867B2Jan 20, 2026
Action recognition system
HITACHI CONSTRUCTION MACH CO0 citations46