Inventor

OHNUMA NAOTO

JP3 patents

Patents

3 patents

US6492790B2Dec 10, 2002

Driving system for driving AC motor

HITACHI LTD10 citations70

US7199547B2Apr 3, 2007

Apparatus, method or system for controlling mobile body

HITACHI LTD6 citations61

US12391521B2Aug 19, 2025

Elevator and control method for elevator

HITACHI LTD0 citations46