Inventor
TOUGASAKI MITSUHISA
JP10 patents
⚠️ This page may combine multiple inventors who share the name “TOUGASAKI MITSUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY
9 patentsUS6438952B1Aug 27, 2002
Hydraulic circuit device
HITACHI CONSTRUCTION MACHINERY22 citations92
US6408876B1Jun 25, 2002
Control valve
HITACHI CONSTRUCTION MACHINERY35 citations92
US6327959B1Dec 11, 2001
Directional control valve device
HITACHI CONSTRUCTION MACHINERY23 citations92
US7265304B2Sep 4, 2007
Joystick for electro-hydraulic control system
HITACHI CONSTRUCTION MACHINERY24 citations88
US6422009B1Jul 23, 2002
Pump capacity control device and valve device
HITACHI CONSTRUCTION MACHINERY18 citations83
US6378302B1Apr 30, 2002
Hydraulic circuit system
HITACHI CONSTRUCTION MACHINERY17 citations83
US9494171B2Nov 15, 2016
Multiple valve device
HITACHI CONSTRUCTION MACHINERY7 citations82
US6453585B1Sep 24, 2002
Hydraulic drive device of working machine
HITACHI CONSTRUCTION MACHINERY9 citations73
US6681794B2Jan 27, 2004
Unloading valve
HITACHI CONSTRUCTION MACHINERY1 citations51