Inventor · disambiguated record
Tetsuo Fujigaki
Also filed as: FUJIGAKI TETSUO
18 granted patents·7 pending applications·210 citations·filing 2000–2018
94Inventor score
Files withHITACHI LTD19HITACHI INDUSTRIAL PRODUCTS LTD1KORI DAISUKE1SAWAHATA MASANORI1YABUTANI TAKASHI1
Top patents by PatentIndex Score
25 records- 0196US7847456B2Permanent magnet electrical rotating machine, wind power generating system, and a method of magnetizing a permanent magnetHITACHI LTD·Filed 2010·Granted Dec 7, 2010·29 cites·20 claims
- 0291US10658898B2Method for manufacturing a neutral ring for use in rotating electrical machineHITACHI INDUSTRIAL PRODUCTS LTD·Filed 2018·Granted May 19, 2020·4 cites·1 claims
- 0391US8653703B2Permanent magnetic rotating electric machine and wind power generating systemKORI DAISUKE·Filed 2011·Granted Feb 18, 2014·15 cites·2 claims
- 0491US7994666B2Permanent magnet electrical rotating machine, wind power generating system, and a method of magnetizing a permanent magnetHITACHI LTD·Filed 2007·Granted Aug 9, 2011·16 cites·20 claims
- 0591US7076339B2Energy-saving service offering method and apparatus thereforHITACHI LTD·Filed 2004·Granted Jul 11, 2006·35 cites·14 claims
- 0691US6775595B1Energy-saving service offering method and apparatus thereforHITACHI LTD·Filed 2000·Granted Aug 10, 2004·58 cites·23 claims
- 0790US7619332B2Permanent magnet type electric rotating machine and wind turbine electric power generation systemHITACHI LTD·Filed 2005·Granted Nov 17, 2009·26 cites·13 claims
- 0885US10177621B2Rotating electric machine or wind power generation systemHITACHI LTD·Filed 2014·Granted Jan 8, 2019·8 cites·15 claims
- 0971US7498707B2Electrical rotation machine and a wind turbine systemHITACHI LTD·Filed 2006·Granted Mar 3, 2009·5 cites·2 claims
- 1067US7737593B2Electrical rotation machine and a wind turbine systemHITACHI LTD·Filed 2009·Granted Jun 15, 2010·3 cites·4 claims
- 1165US9225213B2Electrical rotating machineHITACHI LTD·Filed 2013·Granted Dec 29, 2015·1 cites·21 claims
- 1264US7129613B2Rotating electrical machine and drive system of cage induction motorHITACHI LTD·Filed 2005·Granted Oct 31, 2006·4 cites·19 claims
- 1355US10389194B2Permanent magnet electrical rotating machine with protection members arranged between permanent magnets and rotor coresHITACHI LTD·Filed 2014·Granted Aug 20, 2019·0 cites·15 claims
- 1452US8546991B2Synchronous generator and synchronous generator system for reducing distortion of current waveformSAWAHATA MASANORI·Filed 2009·Granted Oct 1, 2013·1 cites·9 claims
- 1551US9935512B2Permanent magnet rotating electrical machineHITACHI LTD·Filed 2014·Granted Apr 3, 2018·0 cites·10 claims
- 1649US9484793B2Electrical rotating machine system or wind turbine systemHITACHI LTD·Filed 2012·Granted Nov 1, 2016·0 cites·23 claims
- 1749US6882078B2Rotating electrical machine and drive system of cage induction motorHITACHI LTD·Filed 2004·Granted Apr 19, 2005·5 cites·19 claims
- 1848US2010026145A1Sealed type electric rotating machineHITACHI LTD·Filed 2009·Application pending·0 cites
- 1948US2009177331A1Energy-Saving Service Offering Method And Apparatus ThereforYABUTANI TAKASHI·Filed 2009·Application pending·0 cites
- 2047US2013340256A1Bearing replacement method and tools for rotating machineHITACHI LTD·Filed 2013·Application pending·0 cites
- 2146US10033237B2Neutral ring for use in rotating electrical machine and method for manufacturing the sameHITACHI LTD·Filed 2015·Granted Jul 24, 2018·0 cites·3 claims
- 2243US2005192712A1Energy-saving service offering methodFiled 2005·Application pending·0 cites
- 2338US2004119372A1Rotating electric machineHITACHI LTD·Filed 2003·Application pending·0 cites
- 2438US2004119347A1Rotating electric machineHITACHI LTD·Filed 2003·Application pending·0 cites
- 2536US2003173837A1Rotating electric machineFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →