Inventor · disambiguated record
Fumio Tajima
Also filed as: TAJIMA FUMIO
87 granted patents·17 pending applications·3,198 citations·filing 1985–2016
99Inventor score
Top patents by PatentIndex Score
104 records- 0198US6208054B1Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI LTD·Filed 1997·Granted Mar 27, 2001·126 cites·15 claims
- 0298US6034460APermanent magnet rotating electric machine and electrically driven vehicle employing sameHITACHI LTD·Filed 1997·Granted Mar 7, 2000·130 cites·8 claims
- 0398US5549172AElectric vehicle drive system and drive methodHITACHI LTD·Filed 1994·Granted Aug 27, 1996·201 cites·24 claims
- 0497US7151335B2Permanent magnet rotating electric machine and electric car using the sameHITACHI LTD·Filed 2005·Granted Dec 19, 2006·86 cites·8 claims
- 0597US4756875AApparatus for filtering water containing radioactive substances in nuclear power plantsTOSHIBA KK·Filed 1986·Granted Jul 12, 1988·148 cites·8 claims
- 0696US7119470B2Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI CAR ENG CO LTD·Filed 2005·Granted Oct 10, 2006·22 cites·12 claims
- 0796US6396183B1Permanent magnet rotating electric machine and electrically driven vehicle employing sameHITACHI LTD·Filed 2000·Granted May 28, 2002·46 cites·4 claims
- 0896US4874053ATorque detecting apparatusHITACHI LTD·Filed 1988·Granted Oct 17, 1989·118 cites·35 claims
- 0996US4672253APermanent magnet electrical machine with reduced coggingHITACHI LTD·Filed 1985·Granted Jun 9, 1987·150 cites·19 claims
- 1095US6876117B2Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI LTD·Filed 2004·Granted Apr 5, 2005·35 cites·24 claims
- 1195US6798103B2Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI LTD·Filed 2001·Granted Sep 28, 2004·35 cites·6 claims
- 1293US6849983B2Rotary machine having bypath magnetic path blocking magnetic barrierHITACHI LTD·Filed 2001·Granted Feb 1, 2005·56 cites·17 claims
- 1393US6229241B1Structure and manufacturing method for motor and statorHITACHI LTD·Filed 1998·Granted May 8, 2001·90 cites·7 claims
- 1493US6211587B1Electric rotating machineHITACHI LTD·Filed 1999·Granted Apr 3, 2001·99 cites·34 claims
- 1593US5744880ARotating motor and motor-driven vehicleHITACHI LTD·Filed 1996·Granted Apr 28, 1998·122 cites·19 claims
- 1693US5038065APermanent magnet reversible synchronous motorHITACHI LTD·Filed 1989·Granted Aug 6, 1991·93 cites·11 claims
- 1793US4879502ASpeed control apparatus and method for motorsHITACHI LTD·Filed 1988·Granted Nov 7, 1989·84 cites·12 claims
- 1892US7521832B2Rotating electric machine having rotor embedded-permanent-magnets with inner-end magnetic gaps and outer-end magnetic gaps, and electric car using the same electric machineHITACHI LTD·Filed 2006·Granted Apr 21, 2009·28 cites·10 claims
- 1992US7215055B2VehicleHITACHI CAR ENG CO LTD·Filed 2005·Granted May 8, 2007·13 cites·9 claims
- 2092US6133662APermanent magnet dynamoelectric rotating machine and electric vehicle equipped with the sameHITACHI LTD·Filed 1997·Granted Oct 17, 2000·73 cites·14 claims
- 2192US5811904APermanent magnet dynamo electric machineHITACHI LTD·Filed 1997·Granted Sep 22, 1998·139 cites·8 claims
- 2291US7196447B2Rotating electric machineHITACHI CAR ENG CO LTD·Filed 2005·Granted Mar 27, 2007·24 cites·9 claims
- 2391US6239525B1Permanent magnet dynamoelectric rotating machine and electric vehicle equipped with the sameHITACHI LTD·Filed 2000·Granted May 29, 2001·39 cites·2 claims
- 2491US5664542AElectronic throttle systemHITACHI LTD·Filed 1996·Granted Sep 9, 1997·49 cites·4 claims
- 2591US5431141AElectronic throttle systemHITACHI LTD·Filed 1993·Granted Jul 11, 1995·46 cites·7 claims
- 2690US6034459APermanent magnet type dynamo electric machine and electric vehicle using the sameHITACHI LTD·Filed 1999·Granted Mar 7, 2000·72 cites·5 claims
- 2789US7417349B2Driving apparatusHITACHI LTD·Filed 2005·Granted Aug 26, 2008·11 cites·9 claims
- 2889US6949856B2Permanent magnet rotating electric machine and electrically driven vehicle employing sameHITACHI CAR ENG CO LTD·Filed 2004·Granted Sep 27, 2005·22 cites·38 claims
- 2989US6559637B2Non-contact rotational position sensor and throttle valve assembly including non-contact rotational position sensorHITACHI LTD·Filed 2001·Granted May 6, 2003·32 cites·8 claims
- 3089US5432644ADisk drive unit having motor components in a compact arrangementHITACHI LTD·Filed 1994·Granted Jul 11, 1995·48 cites·11 claims
- 3188US6822360B2Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI LTD·Filed 2003·Granted Nov 23, 2004·19 cites·10 claims
- 3288US6661147B2Electric vehicle and rotary electric machine having a divided rotor coreHITACHI LTD·Filed 2002·Granted Dec 9, 2003·32 cites·5 claims
- 3388US6445100B2Permanent magnet dynamo electric machineHITACHI LTD·Filed 2000·Granted Sep 3, 2002·57 cites·19 claims
- 3487USRE44037ERotating electric machine having rotor embedded-permanent-magnets with inner-end magnetic gaps and outer-end magnetic gaps, and electric car using the same electric machineTAJIMA FUMIO·Filed 2009·Granted Mar 5, 2013·19 cites·10 claims
- 3587US7425786B2Permanent magnet type rotating electrical machineHITACHI LTD·Filed 2005·Granted Sep 16, 2008·26 cites·32 claims
- 3685US7378773B2Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI LTD·Filed 2006·Granted May 27, 2008·6 cites·39 claims
- 3785US6815858B2Permanent magnet rotating electric machineHITACHI LTD·Filed 2002·Granted Nov 9, 2004·23 cites·21 claims
- 3885US6037695AVehicle alternator having improved rotating yokeHITACHI LTD·Filed 1997·Granted Mar 14, 2000·62 cites·6 claims
- 3984US8067871B2Permanent magnet rotating electric machine and electric car using the sameTAJIMA FUMIO·Filed 2009·Granted Nov 29, 2011·15 cites·10 claims
- 4084US5936323APermanent magnet rotation type rotary machine and manufacturing method thereofHITACHI LTD·Filed 1997·Granted Aug 10, 1999·63 cites·10 claims
- 4183US7750529B2Electric PumpHITACHI LTD·Filed 2007·Granted Jul 6, 2010·20 cites·23 claims
- 4283US6734592B2Permanent magnet rotating electric machine and electrically driven vehicle employing sameHITACHI LTD·Filed 2002·Granted May 11, 2004·30 cites·7 claims
- 4382US7233089B2Permanent magnet rotating electric machineHITACHI LTD·Filed 2005·Granted Jun 19, 2007·8 cites·5 claims
- 4482US5453972AOptical disk apparatusHITACHI LTD·Filed 1993·Granted Sep 26, 1995·34 cites·4 claims
- 4581US6429565B1Permanent magnet type electric rotating machine and hybrid electric vehicle using itHITACHI LTD·Filed 2000·Granted Aug 6, 2002·36 cites·10 claims
- 4680US7851959B2Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineHITACHI LTD·Filed 2009·Granted Dec 14, 2010·4 cites·21 claims
- 4779US5023924ASpeed control apparatus for movable equipmentHITACHI LTD·Filed 1990·Granted Jun 11, 1991·41 cites·11 claims
- 4878US8040010B2Permanent magnet type generator and hybrid vehicle using the sameHITACHI LTD·Filed 2009·Granted Oct 18, 2011·12 cites·8 claims
- 4978US7671502B2Driving apparatusHITACHI LTD·Filed 2008·Granted Mar 2, 2010·6 cites·9 claims
- 5078US7518277B2Electric motorHITACHI LTD·Filed 2004·Granted Apr 14, 2009·28 cites·15 claims
Showing the top 50 of 104 patent records by PatentIndex Score.
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