Yosio Furukawa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Variable-speed power generating system
- Patent number 4,870,339
- Issue date Sep 26, 1989
- Hitachi Ltd.
- Yosio Furukawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable-speed generator/motor system
- Patent number 4,812,730
- Issue date Mar 14, 1989
- Hitachi, Ltd.
- Hiroto Nakagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rotor with salient poles and shield plates between the poles
- Patent number 4,246,505
- Issue date Jan 20, 1981
- Hitachi, Ltd.
- Yasuhiro Yasaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER