Norihiro Ooki

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Katsuta, JP

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Patents Grantslast 30 patents

Information 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
Information 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
Information 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