Inventor
OGATA KOJIRO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “OGATA KOJIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY
6 patentsUS5662822ASep 2, 1997
Dam bar cutting apparatus and dam bar cutting method
HITACHI CONSTRUCTION MACHINERY99 citations95
US5005298AApr 9, 1991
Displacement controller for fine positioning device
HITACHI CONSTRUCTION MACHINERY15 citations82
US4991309AFeb 12, 1991
Fine positioning device and displacement controller therefor
HITACHI CONSTRUCTION MACHINERY12 citations82
US4888878ADec 26, 1989
Fine positioning device
HITACHI CONSTRUCTION MACHINERY22 citations82
US4920660AMay 1, 1990
Fine positioning device and displacement controller therefor
HITACHI CONSTRUCTION MACHINERY11 citations73
US4403890ASep 13, 1983
Method of laying pipe underground and system therefor
HITACHI CONSTRUCTION MACHINERY16 citations73