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Keiji Fukushi
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and method for detecting partial discharge at turn-to-tur...
Patent number
8,816,694
Issue date
Aug 26, 2014
Hitachi Industrial Equipment Systems Co., Ltd.
Kouji Obata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method for producing a superconducting magnet coil
Patent number
5,538,942
Issue date
Jul 23, 1996
Hitachi, Ltd.
Toru Koyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Superconducting magnet coil and curable resin composition used therein
Patent number
5,384,197
Issue date
Jan 24, 1995
Hitachi, Ltd.
Toru Koyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Stator of submerged motor
Patent number
4,492,889
Issue date
Jan 8, 1985
Hitachi, Ltd.
Keiji Fukushi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHOD FOR DETECTING PARTIAL DISCHARGE AT TURN-TO-TUR...
Publication number
20140354298
Publication date
Dec 4, 2014
Kouji Obata
G01 - MEASURING TESTING
Information
Patent Application
Apparatus for partial discharge detection of turn to turn insulatio...
Publication number
20060022679
Publication date
Feb 2, 2006
Kouji Obata
G01 - MEASURING TESTING