Inventor
ICHIYAMA SHUICHI
JP4 patents
Patents
4 patentsUS4627013ADec 2, 1986
Load weight indicating system for load moving machine
HITACHI CONSTRUCTION MACHINERY80 citations95
US4768339ASep 6, 1988
Hydraulic drive system
HITACHI CONSTRUCTION MACHINERY72 citations92
US4565221AJan 21, 1986
Control valve assembly
HITACHI CONSTRUCTION MACHINERY7 citations72
US4464898AAug 14, 1984
Hydraulic power system
HITACHI CONSTRUCTION MACHINERY19 citations71