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Norihiro Ooki
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Katsuta, JP
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last 30 patents
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Patent Grant
Brush holder with coated clamp for dynamo-electric machine
Patent number
4,409,508
Issue date
Oct 11, 1983
Hitachi, Ltd.
Norihiro Ooki
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Slip ring cooling devices for electrical rotary machines
Patent number
4,334,159
Issue date
Jun 8, 1982
Hitachi, Ltd.
Norihiro Ooki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Patent Grant
Brush holding apparatus for rotary electric machine
Patent number
4,296,346
Issue date
Oct 20, 1981
Hitachi, Ltd.
Norihiro Ooki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER