Inventor
OKAZAKI YASUHARU
JP8 patents
⚠️ This page may combine multiple inventors who share the name “OKAZAKI YASUHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY
4 patentsUS6408622B1Jun 25, 2002
Hydraulic drive device
HITACHI CONSTRUCTION MACHINERY45 citations91
US6584770B2Jul 1, 2003
Hydraulic drive system
HITACHI CONSTRUCTION MACHINERY17 citations83
US6526747B2Mar 4, 2003
Hydraulic driving device
HITACHI CONSTRUCTION MACHINERY20 citations82
US6397591B1Jun 4, 2002
Hydraulic driving unit
HITACHI CONSTRUCTION MACHINERY10 citations72
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD
4 patentsUS10100495B2Oct 16, 2018
Hydraulic driving system for construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD7 citations73
US10060451B2Aug 28, 2018
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD4 citations73
US10215198B2Feb 26, 2019
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD4 citations71
US9976283B2May 22, 2018
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD6 citations71