Koosuke Harada

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Fukuoka-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic-coupling multivibrator
- Patent number 5,986,908
- Issue date Nov 16, 1999
- Nippon Electric Industry Co., Ltd.
- Katsunori Sugimori
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power source device
- Patent number 4,926,302
- Issue date May 15, 1990
- Nishimu Electronics Industries Co., Ltd.
- Koosuke Harada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM inverter with a saturable core
- Patent number 4,800,476
- Issue date Jan 24, 1989
- Nishimu Electronics Industries Co., Inc.
- Koosuke Harada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power source using high-frequency phase control
- Patent number 4,772,994
- Issue date Sep 20, 1988
- Nishimu Electronics Industries, Co., Ltd.
- Koosuke Harada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High frequency power supply device
- Patent number 4,553,199
- Issue date Nov 12, 1985
- Tokyo Shibaura Denki Kabushiki Kaisha
- Koosuke Harada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER