Inventor

IWASHITA HIDEKAZU

JP2 patents

Patents

2 patents

US11247880B2Feb 15, 2022

Winch drum and crane provided therewith

KOBELCO CONSTR MACH CO LTD0 citations43

US12398535B2Aug 26, 2025

Turning unit of construction machine

KOBELCO CONSTR MACH CO LTD0 citations41