Inventor · disambiguated record
Haruo Koharagi
Also filed as: KOHARAGI HARUO
34 granted patents·6 pending applications·1,018 citations·filing 1982–2010
98Inventor score
Top patents by PatentIndex Score
40 records- 0197US6525442B2Permanent magnet rotating electric machineHITACHI LTD·Filed 2001·Granted Feb 25, 2003·120 cites·35 claims
- 0296US6917133B2Air conditioner having permanent magnet rotating electric machineHITACHI LTD·Filed 2003·Granted Jul 12, 2005·82 cites·36 claims
- 0396US4880474AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1987·Granted Nov 14, 1989·125 cites·9 claims
- 0494US5243732AVacuum cleaner with fuzzy logic controlHITACHI LTD·Filed 1991·Granted Sep 14, 1993·142 cites·16 claims
- 0591US6441525B1Permanent magnet rotating electric machineHITACHI LTD·Filed 2001·Granted Aug 27, 2002·43 cites·4 claims
- 0690US7442017B2Displacement type compressor having a self-start synchronous motor and start load reducing meansHITACHI APPLIANCES INC·Filed 2005·Granted Oct 28, 2008·10 cites·3 claims
- 0788US8358040B2Permanent magnet type electric rotating machineHITACHI LTD·Filed 2006·Granted Jan 22, 2013·16 cites·17 claims
- 0886US7626301B2Electric rotating machine having permanent magnets and method of manufacturing teeth portions of the stator iron coreJAPAN SERVO·Filed 2005·Granted Dec 1, 2009·12 cites·7 claims
- 0985US7531934B2Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the sameHITACHI APPLIANCES INC·Filed 2006·Granted May 12, 2009·18 cites·12 claims
- 1082US4958406AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1988·Granted Sep 25, 1990·41 cites·10 claims
- 1180US6462451B1Permanent magnet rotating electric machineHITACHI LTD·Filed 2001·Granted Oct 8, 2002·25 cites·3 claims
- 1279US6376958B1Permanent magnet type synchronous motor and air compressorHITACHI LTD·Filed 2000·Granted Apr 23, 2002·25 cites·24 claims
- 1379US6369478B1Permanent-magnet-type electric rotating machine and air compressor and generator using the sameHITACHI LTD·Filed 2001·Granted Apr 9, 2002·24 cites·33 claims
- 1478US7772736B2Permanent magnet synchronous motor, rotor of the same, and compressor using the sameHITACHI APPLIANCES INC·Filed 2007·Granted Aug 10, 2010·9 cites·11 claims
- 1578US6441523B1Very high permanent magnet type electric rotating machine systemHITACHI LTD·Filed 2000·Granted Aug 27, 2002·24 cites·8 claims
- 1675US7453181B2Permanent magnet synchronous motor and compressor using the sameHITACHI APPLIANCES INC·Filed 2006·Granted Nov 18, 2008·7 cites·20 claims
- 1775US6552461B2Permanent magnet type rotating electric machineHITACHI LTD·Filed 2002·Granted Apr 22, 2003·18 cites·8 claims
- 1875US5294872AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Mar 15, 1994·25 cites·7 claims
- 1974US6657350B2Permanent magnet type rotating electrical machine, and power generation system and drive system using itHITACHI LTD·Filed 2001·Granted Dec 2, 2003·19 cites·8 claims
- 2073US6838798B2Permanent magnet type rotating electric machineHITACHI LTD·Filed 2003·Granted Jan 4, 2005·16 cites·6 claims
- 2172US5166585AMotor control apparatus for an electric vacuum cleanerHITACHI LTD·Filed 1991·Granted Nov 24, 1992·28 cites·33 claims
- 2271US4983895AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1989·Granted Jan 8, 1991·25 cites·2 claims
- 2368US5469009ATurbine generatorHITACHI LTD·Filed 1994·Granted Nov 21, 1995·32 cites·13 claims
- 2466US6759776B2Permanent magnet type electric rotating machineHITACHI LTD·Filed 2002·Granted Jul 6, 2004·12 cites·8 claims
- 2563US7501734B2Motor, compressor, and air conditionerHITACHI APPLIANCES INC·Filed 2006·Granted Mar 10, 2009·3 cites·12 claims
- 2662US6759777B2Permanent magnet type electric rotating machineHITACHI LTD·Filed 2002·Granted Jul 6, 2004·9 cites·32 claims
- 2761US4451752AStator of D.C. rotary machineHITACHI LTD·Filed 1982·Granted May 29, 1984·18 cites·14 claims
- 2859US5381584AVacuum cleanerHITACHI LTD·Filed 1993·Granted Jan 17, 1995·27 cites·18 claims
- 2958US5015905ADC dynamoelectric machine with interpoles having magnetic flux bypassing membersHITACHI LTD·Filed 1989·Granted May 14, 1991·21 cites·9 claims
- 3054US2009010776A1Displacement type compressor having a self-start synchronous motor and start load reducing meansHITACHI APPLIANCES INC·Filed 2008·Application pending·0 cites
- 3151US5075607AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Dec 24, 1991·10 cites·8 claims
- 3250US8241021B2Displacement type compressor having a self-start synchronous motor and start load reducing meansTSUCHIYA TAKESHI·Filed 2010·Granted Aug 14, 2012·0 cites·1 claims
- 3345US4467234AArmature of rotating machine with means to balance the mutual inductance of adjacent pairs of coilsHITACHI LTD·Filed 1983·Granted Aug 21, 1984·10 cites·11 claims
- 3445US4454460AD.C. Rotary machine with interpole compensationHITACHI LTD·Filed 1983·Granted Jun 12, 1984·10 cites·8 claims
- 3540US5155885AVacuum cleaner and method for operating the sameHITACHI LTD·Filed 1989·Granted Oct 20, 1992·12 cites·12 claims
- 3638US2003057785A1Permanent magnet rotating electric machineFiled 2002·Application pending·0 cites
- 3737US2002175583A1Permanent magnet type rotating electrical machine and air conditioner using itFiled 2001·Application pending·0 cites
- 3837US2003071533A1Self-starting synchronous motor and compressor using the sameFiled 2002·Application pending·0 cites
- 3937US2002175584A1Permanent magnet type rotating electrical machineFiled 2001·Application pending·0 cites
- 4036US2002171309A1Rotor and rotating electrical machine with embedded permanent magnetFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →