ZAIDAN HOJIN HANDOTAI KENKYU SINKOKAI, A CORP. OF JAPAN

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Patents Grantslast 30 patents

Information Patent Grant
PWM power converter using mixed bipolar and static induction transi...
- Patent number 5,021,936
- Issue date Jun 4, 1991
- Zaidan Hojin Handotai Kenkyu Sinkokai
- Jun-ichi Nishizawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power control apparatus
- Patent number 4,956,599
- Issue date Sep 11, 1990
- Tohoku Electric Manufacturing Co., Ltd.
- Jun-ichi Nishizawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Optically controlled power converting apparatus
- Patent number 4,719,551
- Issue date Jan 12, 1988
- Zaidan Hojin Handotai Kenkyu Sinkokai
- Junichi Nishizawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

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