Inventor
SUNAMURA KAZUHIRO
JP5 patents
⚠️ This page may combine multiple inventors who share the name “SUNAMURA KAZUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY
3 patentsUS6230090B1May 8, 2001
Interference prevention system for two-piece boom type hydraulic excavator
HITACHI CONSTRUCTION MACHINERY35 citations92
US5497805AMar 12, 1996
Drive control system for hydraulic machine
HITACHI CONSTRUCTION MACHINERY31 citations89
US5632190AMay 27, 1997
Burglarproof device for hydraulic machine
HITACHI CONSTRUCTION MACHINERY13 citations72