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Shuzo Iwaasa
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Gas insulated electric apparatus
Patent number
6,063,997
Issue date
May 16, 2000
Hitachi, Ltd.
Fumihiro Endo
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Gas insulated switchgear
Patent number
6,002,085
Issue date
Dec 14, 1999
Hitachi, Ltd.
Tomoaki Utsumi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power apparatus and method of location of a fault in a power appara...
Patent number
5,256,976
Issue date
Oct 26, 1993
Hitachi, Ltd.
Toshio Ishikawa
G01 - MEASURING TESTING