Inventor
FUJIGAKI TETSUO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “FUJIGAKI TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS6775595B1Aug 10, 2004
Energy-saving service offering method and apparatus therefor
HITACHI LTD58 citations94
US7994666B2Aug 9, 2011
Permanent magnet electrical rotating machine, wind power generating system, and a method of magnetizing a permanent magnet
HITACHI LTD16 citations91
US7847456B2Dec 7, 2010
Permanent magnet electrical rotating machine, wind power generating system, and a method of magnetizing a permanent magnet
HITACHI LTD29 citations91
US7076339B2Jul 11, 2006
Energy-saving service offering method and apparatus therefor
HITACHI LTD35 citations91
US7619332B2Nov 17, 2009
Permanent magnet type electric rotating machine and wind turbine electric power generation system
HITACHI LTD26 citations89
US10177621B2Jan 8, 2019
Rotating electric machine or wind power generation system
HITACHI LTD8 citations82
US7737593B2Jun 15, 2010
Electrical rotation machine and a wind turbine system
HITACHI LTD3 citations62
US7498707B2Mar 3, 2009
Electrical rotation machine and a wind turbine system
HITACHI LTD5 citations62
US7129613B2Oct 31, 2006
Rotating electrical machine and drive system of cage induction motor
HITACHI LTD4 citations60
US6882078B2Apr 19, 2005
Rotating electrical machine and drive system of cage induction motor
HITACHI LTD5 citations60
US9225213B2Dec 29, 2015
Electrical rotating machine
HITACHI LTD1 citations52
US10033237B2Jul 24, 2018
Neutral ring for use in rotating electrical machine and method for manufacturing the same
HITACHI LTD0 citations50
US10389194B2Aug 20, 2019
Permanent magnet electrical rotating machine with protection members arranged between permanent magnets and rotor cores
HITACHI LTD0 citations48
US9935512B2Apr 3, 2018
Permanent magnet rotating electrical machine
HITACHI LTD0 citations40
US9484793B2Nov 1, 2016
Electrical rotating machine system or wind turbine system
HITACHI LTD0 citations40