4. Horology: time measuring systems or devices
  5. Chronological
  6. With supplemental power source

Osamu Shinkawa

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AC voltage detection circuit and method, charging circuit...

Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate

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Brushless DC motor drive apparatus

Electricity: motive power systems – Switched reluctance motor commutation control
Patent

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Chopper circuit, chopper circuit control method,...

Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate

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Chopper circuit, chopper circuit control method,...

Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate

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Compressor start-up controller

Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent

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Profile ID: LFUS-PAI-P-951109

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