P

Inventor

KAWAZOE HIRONARI

JP8 patents
⚠️ This page may combine multiple inventors who share the name “KAWAZOE HIRONARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

6 patents
US6731522B2May 4, 2004

Power generation apparatus using permanent-magnet generator

HITACHI LTD15 citations92
US6611438B2Aug 26, 2003

Power generation apparatus using permanent-magnet generator

HITACHI LTD14 citations92
US6611437B2Aug 26, 2003

Power generation apparatus using permanent-magnet generator

HITACHI LTD14 citations92
US5349522ASep 20, 1994

Method and apparatus for controlling the output voltage of an AC electrical system

HITACHI LTD26 citations90
US7863904B2Jan 4, 2011

Cell voltage detection device and cell system using the same

HITACHI LTD13 citations84
US9344020B2May 17, 2016

Power conversion apparatus and electrical-mechanical energy conversion system

HITACHI LTD2 citations62

HITACHI IND EQUIPMENT SYS

1 patent
US7855467B2Dec 21, 2010

Hybrid power generation of wind-power generator and battery energy storage system

HITACHI IND EQUIPMENT SYS23 citations89

HITACHI MITSUBISHI HYDRO CORPORATION

1 patent
US11942873B2Mar 26, 2024

Secondary magnetic excitation generator-motor device

HITACHI MITSUBISHI HYDRO CORPORATION0 citations51