Inventor · disambiguated record
Shigeru Kakugawa
Also filed as: KAKUGAWA SHIGERU
36 granted patents·10 pending applications·530 citations·filing 1992–2018
98Inventor score
Top patents by PatentIndex Score
46 records- 0197US7151335B2Permanent magnet rotating electric machine and electric car using the sameHITACHI LTD·Filed 2005·Granted Dec 19, 2006·86 cites·8 claims
- 0292US7521832B2Rotating 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
- 0389US7026817B2Nuclear magnetic resonance spectrometer for liquid-solutionHITACHI LTD·Filed 2005·Granted Apr 11, 2006·12 cites·4 claims
- 0488US7138802B2Nuclear magnetic resonance apparatus probeHITACHI LTD·Filed 2006·Granted Nov 21, 2006·12 cites·6 claims
- 0587USRE44037ERotating 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
- 0686US7046007B2Nuclear magnetic resonance spectrometer using split magnetsHITACHI LTD·Filed 2005·Granted May 16, 2006·9 cites·4 claims
- 0786US6859036B2NMR analyzerHITACHI LTD·Filed 2002·Granted Feb 22, 2005·22 cites·10 claims
- 0886US6828791B2Nuclear magnetic resonance apparatus probe having a solenoid coil and a saddle coil and nuclear magnetic resonance apparatus probe using the sameHITACHI LTD·Filed 2002·Granted Dec 7, 2004·25 cites·8 claims
- 0985US7190167B2Nuclear magnetic resonance spectrometer for liquid-solutionHITACHI LTD·Filed 2006·Granted Mar 13, 2007·8 cites·12 claims
- 1084US8067871B2Permanent magnet rotating electric machine and electric car using the sameTAJIMA FUMIO·Filed 2009·Granted Nov 29, 2011·15 cites·10 claims
- 1181US7053621B2Split type NMR magnet device and NMR apparatus for solution analysis with at least an 11 T static magnetic field and different energizing directions of the NMR magnetsHITACHI LTD·Filed 2005·Granted May 30, 2006·8 cites·17 claims
- 1280US6897657B2Nuclear magnetic resonance spectrometer for liquid-solutionHITACHI LTD·Filed 2002·Granted May 24, 2005·15 cites·8 claims
- 1379US6037850ASuperconducting magnet apparatus and method of regulating magnetization thereofHITACHI MEDICAL CORP·Filed 1997·Granted Mar 14, 2000·35 cites·76 claims
- 1477US7714466B2Claw-teeth-type rotating electrical machineHITACHI IND EQUIPMENT SYS·Filed 2007·Granted May 11, 2010·8 cites·7 claims
- 1577US6538545B2Magnet, a method of adjustment of magnetic field and a magnetic resonance imaging apparatusHITACHI LTD·Filed 2002·Granted Mar 25, 2003·20 cites·18 claims
- 1676US6580346B1Magnetic resonance imaging apparatusHITACHI MEDICAL CORP·Filed 1997·Granted Jun 17, 2003·34 cites·34 claims
- 1775US6975118B2Supersensitive nuclear magnetic resonance micro imaging apparatusHITACHI LTD·Filed 2002·Granted Dec 13, 2005·14 cites·10 claims
- 1875US6888352B2Nuclear magnetic resonance spectrometer using split magnetsHITACHI LTD·Filed 2002·Granted May 3, 2005·11 cites·4 claims
- 1974US7154271B2Split type NMR Superconductive magnet device and NMR apparatus for solution analysis with a permanent current switch holding the split type superconducting magnet in a permanent current modeHITACHI LTD·Filed 2006·Granted Dec 26, 2006·5 cites·15 claims
- 2069US7084634B2Nuclear magnetic resonance apparatus probeHITACHI LTD·Filed 2004·Granted Aug 1, 2006·10 cites·8 claims
- 2168US6937019B2Supersensitive nuclear magnetic resonance micro imaging apparatusFiled 2003·Granted Aug 30, 2005·10 cites·17 claims
- 2267US7292040B2Split type NMR superconductive magnet device and NMR apparatus for solution analysis with different current directions and a permanent current switchHITACHI LTD·Filed 2006·Granted Nov 6, 2007·3 cites·9 claims
- 2367US5936498ASuperconducting magnet apparatus and magnetic resonance imaging system using the sameHITACHI MEDICAL CORP·Filed 1997·Granted Aug 10, 1999·29 cites·14 claims
- 2463US6909347B2Magnet for magnetic resonance imaging apparatusHITACHI LTD·Filed 2002·Granted Jun 21, 2005·10 cites·9 claims
- 2561US7212003B2NMR analyzerHITACHI LTD·Filed 2005·Granted May 1, 2007·2 cites·12 claims
- 2661US7208954B2NMR analyzerHITACHI LTD·Filed 2003·Granted Apr 24, 2007·6 cites·7 claims
- 2756US6600318B1Open MRI system with a vertical static field and an imaging volume closer to the lower than to the upper magnet assemblyHITACHI MEDICAL CORP·Filed 1998·Granted Jul 29, 2003·19 cites·7 claims
- 2855US6853281B1Magnet apparatus and mri apparatusHITACHI MEDICAL CORP·Filed 1998·Granted Feb 8, 2005·19 cites·65 claims
- 2954US6816047B2Magnetic resonance imaging apparatusHITACHI MEDICAL CORP·Filed 2003·Granted Nov 9, 2004·5 cites·3 claims
- 3050US10629355B2Stationary induction apparatusHITACHI LTD·Filed 2018·Granted Apr 21, 2020·0 cites·5 claims
- 3148US6909348B2Low-leakage magnetic-field magnet and shield coil assemblyHITACHI MEDICAL CORP·Filed 2001·Granted Jun 21, 2005·4 cites·46 claims
- 3248US2012038236A1Permanent Magnet Rotating Electric Machine and Electric Car Using the SameTAJIMA FUMIO·Filed 2011·Application pending·0 cites
- 3347US6937017B2Magnetic pole magnet device using the magnetic pole, and magnetic resonance imaging apparatusHITACHI MEDICAL CORP·Filed 2002·Granted Aug 30, 2005·3 cites·21 claims
- 3446US7492159B2Nuclear magnetic resonance spectrometer for liquid-solutionHITACHI LTD·Filed 2007·Granted Feb 17, 2009·0 cites·4 claims
- 3546US2007279059A1NMR analyzerAIHARA KATSUZOU·Filed 2007·Application pending·0 cites
- 3645US2018246065A1Eddy-current testing method and eddy-current testing deviceMITSUBISHI HITACHI POWER SYS·Filed 2018·Application pending·0 cites
- 3743US5296812ASuperconducting magnet assembly for MRI and MRI diagnostic apparatusHITACHI LTD·Filed 1992·Granted Mar 22, 1994·9 cites·8 claims
- 3843US2005248349A1Supersensitive nuclear magnetic resonance imaging apparatusOKADA MICHIYA·Filed 2005·Application pending·0 cites
- 3940US5812042ASuperconducting magnet formed by laminating hollow conductor platesHITACHI LTD·Filed 1996·Granted Sep 22, 1998·15 cites·9 claims
- 4039US2004041565A1NMR magnet device for solution analysis and NMR apparatusFiled 2003·Application pending·0 cites
- 4138US2013140930A1Electric rotating machine and method for manufacturing a stator core for the electric rotating machineKOKA HIDETOSHI·Filed 2011·Application pending·0 cites
- 4235US2007241644A1Single-phase motorKAKUGAWA SHIGERU·Filed 2007·Application pending·0 cites
- 4333US8781763B2Method for analyzing operating point of permanent magnet, program therefor, and recording mediumKAKUGAWA SHIGERU·Filed 2011·Granted Jul 15, 2014·0 cites·9 claims
- 4433US2013127280A1Electric rotating machine and electric vehicle using the sameSUGIMOTO SHINJI·Filed 2010·Application pending·0 cites
- 4533US2008018289A1Single-phase position sensorless permanent magnet motor control apparatusTAJIMA FUMIO·Filed 2007·Application pending·0 cites
- 4629US2008018194A1Claw-pole type singel-phase motor, claw-pole type single-phase motor system and electric pump, electric fan and vehicle provided with claw-pole type single-phase motorKAKUGAWA SHIGERU·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →