Katsuyuki Kawahara

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Hachioji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Control system of pumping operation using AC exciting generator-motor
- Patent number 4,856,965
- Issue date Aug 15, 1989
- The Tokyo Electric Power Co. Inc.
- Masahiro Katsuie
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for stopping a multi-stage hydraulic machine
- Patent number 4,578,017
- Issue date Mar 25, 1986
- Kabushiki Kaisha Toshiba
- Taizo Nakamura
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...