Yoshio Okumura

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power converter control system
- Patent number 4,144,559
- Issue date Mar 13, 1979
- Hitachi, Ltd.
- Yoshio Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter control apparatus
- Patent number 4,136,305
- Issue date Jan 23, 1979
- Hitachi, Ltd.
- Yoshio Okumura
- B60 - VEHICLES IN GENERAL