Tadaatsu Kato

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Takarazuka, JP

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Patents Grantslast 30 patents

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
Control system for AC motor/generator of secondary AC excitation type
- Patent number 4,742,288
- Issue date May 3, 1988
- Hitachi, Ltd.
- Osamu Sugimoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER