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Inventor

Shigeru Kakugawa

Inventor
Hitachi, JP

Overview

36→
Patents
1994–2020
Patent span
Physics
Primary field (CPC G)

Patents· 36 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Rprimary
G01RMeasuring electric variables59%
H02KDynamo-electric machines10%
B60LPropulsion of electrically-propelled vehicles8%
H01FMagnets8%
Y02TClimate change mitigation technologies related to transportation8%
H02JElectric power networks2%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
PatentTitleYear
10,629,355Stationary induction apparatus20208,781,763'Method for analyzing operating point of permanent magnet, program therefor, and recording medium'2014RE044037'Rotating electric machine having rotor embedded-permanent-magnets with inner-end magnetic gaps and outer-end magnetic gaps, and electric car using the same electric machine'20138,067,871'Permanent magnet rotating electric machine and electric car using the same'20117,714,466'Claw-teeth-type rotating electrical machine'20107,521,832'Rotating electric machine having rotor embedded-permanent-magnets with inner-end magnetic gaps and outer-end magnetic gaps, and electric car using the same electric machine'20097,492,159'Nuclear magnetic resonance spectrometer for liquid-solution'20097,292,040'Split type NMR superconductive magnet device and NMR apparatus for solution analysis with different current directions and a permanent current switch'20077,212,003'NMR analyzer'20077,208,954'NMR analyzer'20077,190,167'Nuclear magnetic resonance spectrometer for liquid-solution'20077,154,271'Split 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 mode'20067,151,335'Permanent magnet rotating electric machine and electric car using the same'20067,138,802'Nuclear magnetic resonance apparatus probe'20067,084,634'Nuclear magnetic resonance apparatus probe'20067,053,621'Split 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 magnets'20067,046,007'Nuclear magnetic resonance spectrometer using split magnets'20067,026,817'Nuclear magnetic resonance spectrometer for liquid-solution'20066,975,118'Supersensitive nuclear magnetic resonance micro imaging apparatus'20056,937,017'Magnetic pole magnet device using the magnetic pole, and magnetic resonance imaging apparatus'20056,937,019'Supersensitive nuclear magnetic resonance micro imaging apparatus'20056,909,348'Low-leakage magnetic-field magnet and shield coil assembly'20056,909,347'Magnet for magnetic resonance imaging apparatus'20056,897,657'Nuclear magnetic resonance spectrometer for liquid-solution'20056,888,352'Nuclear magnetic resonance spectrometer using split magnets'20056,859,036'NMR analyzer'20056,853,281'Magnet apparatus and mri apparatus'20056,828,791'Nuclear magnetic resonance apparatus probe having a solenoid coil and a saddle coil and nuclear magnetic resonance apparatus probe using the same'20046,816,047'Magnetic resonance imaging apparatus'20046,600,318'Open MRI system with a vertical static field and an imaging volume closer to the lower than to the upper magnet assembly'20036,580,346'Magnetic resonance imaging apparatus'20036,538,545'Magnet, a method of adjustment of magnetic field and a magnetic resonance imaging apparatus'20036,037,850'Superconducting magnet apparatus and method of regulating magnetization thereof'20005,936,498'Superconducting magnet apparatus and magnetic resonance imaging system using the same'19995,812,042'Superconducting magnet formed by laminating hollow conductor plates'19985,296,812'Superconducting magnet assembly for MRI and MRI diagnostic apparatus'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2020Patents assigned to HITACHI LTD (27)· patent assignee history
1994–2014Based in Hitachi, JP· patent location history
1999–2005Patents assigned to HITACHI MEDICAL CORP (8)· patent assignee history
2004Based in Ibaraki, JP· patent location history
2005–2020Based in Tokyo, JP· patent location history
2011–2014Patents assigned to KAKUGAWA SHIGERU (3)· patent assignee history
2011–2014Patents assigned to KITAMURA MASASHI (3)· patent assignee history
2011–2013Patents assigned to HINO NORIAKI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD271994–2020
HITACHI MEDICAL CORP81999–2005
KAKUGAWA SHIGERUself32011–2014
KITAMURA MASASHI32011–2014
HINO NORIAKI22011–2013
Locations
LocationPatentsSpan
Hitachi, JP331994–2014
Tokyo, JP22005–2020
Ibaraki, JP12004