Akira Isono

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling excitation of a generator
- Patent number 4,326,159
- Issue date Apr 20, 1982
- Hitachi, Ltd.
- Hiroaki Aotsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Excitation control apparatus for a generator
- Patent number 4,245,182
- Issue date Jan 13, 1981
- Hitachi, Ltd.
- Hiroaki Aotsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Excitation control apparatus suited for normal stop operation of sy...
- Patent number 4,129,818
- Issue date Dec 12, 1978
- Hitachi, Ltd.
- Masuo Goto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for hydroelectric power station system
- Patent number 4,109,160
- Issue date Aug 22, 1978
- Hitachi, Ltd.
- Masuo Goto
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...