Inventor
TAKAHASHI EI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI EI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACH CO
7 patentsUSD915470SApr 6, 2021
Excavator
HITACHI CONSTRUCTION MACH CO17 citations93
USD856379SAug 13, 2019
Air conditioning duct cover with monitor for construction machine
HITACHI CONSTRUCTION MACH CO16 citations85
USD856380SAug 13, 2019
Console box for construction machine
HITACHI CONSTRUCTION MACH CO15 citations85
USD854587SJul 23, 2019
Cab for construction machine
HITACHI CONSTRUCTION MACH CO16 citations85
USD857755SAug 27, 2019
Seat for operator cab for construction machine
HITACHI CONSTRUCTION MACH CO7 citations84
USD856381SAug 13, 2019
Console box for construction machine
HITACHI CONSTRUCTION MACH CO12 citations83
USD969173SNov 8, 2022
Portion of a counterweight for construction machine
HITACHI CONSTRUCTION MACH CO3 citations72
HITACHI CONSTRUCTION MACHINERY
6 patentsUS6020651AFeb 1, 2000
Engine control system for construction machine
HITACHI CONSTRUCTION MACHINERY107 citations98
US6230090B1May 8, 2001
Interference prevention system for two-piece boom type hydraulic excavator
HITACHI CONSTRUCTION MACHINERY35 citations92
US6164069ADec 26, 2000
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY22 citations92
US5930996AAug 3, 1999
Auto-acceleration system for prime mover of hydraulic construction machine and control system for prime mover and hydraulic pump
HITACHI CONSTRUCTION MACHINERY28 citations92
US5911506AJun 15, 1999
Control system for prime mover and hydraulic pump of hydraulic construction machine
HITACHI CONSTRUCTION MACHINERY37 citations92
US6273632B1Aug 14, 2001
Joint pin lock mechanism for pivotal pin joint
HITACHI CONSTRUCTION MACHINERY30 citations89