Patents by Inventor Eduardo Sato

Eduardo Sato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Power conversion device for converting DC power to AC power
    Patent number: 8508957
    Abstract: A power conversion device includes an inverter for converting DC power to AC power to supply the AC power to a load, a converter for converting AC power from an AC power supply to DC power to supply the DC power to the inverter, a DC voltage converter for converting a voltage value of power stored in a storage battery to supply DC power from the storage battery to the inverter when power supply by the AC power supply is abnormal, and a filter which includes a reactor and a capacitor and removes harmonics generated by the inverter. The inverter includes a three-level circuit constituted of an arm and an AC switch.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: August 13, 2013
    Assignee: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Kazuhide Eduardo Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh
  • POWER CONVERSION DEVICE
    Publication number: 20110170322
    Abstract: A power conversion device includes an inverter for converting DC power to AC power to supply the AC power to a load, a converter for converting AC power from an AC power supply to DC power to supply the DC power to the inverter, a DC voltage converter for converting a voltage value of power stored in a storage battery to supply DC power from the storage battery to the inverter when power supply by the AC power supply is abnormal, and a filter which includes a reactor and a capacitor and removes harmonics generated by the inverter. The inverter includes a three-level circuit constituted of an arm and an AC switch.
    Type: Application
    Filed: October 16, 2008
    Publication date: July 14, 2011
    Applicant: Toshiba Mitsubishi-Electric Industrial System Corp
    Inventors: Kazuhide Eduardo Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh
  • POWER CONVERSION APPARATUS
    Publication number: 20110134672
    Abstract: A power conversion apparatus includes an inverter for converting DC power to AC power for supply to a load, a converter for converting AC power from an AC power supply to DC power for supply to the inverter, and a DC voltage converter for converting a voltage value of power stored in a storage battery and supplying DC power from the storage battery to the inverter when power supply by the AC power supply is abnormal. The converter includes a first three-level circuit which is a multi-level circuit. Similarly, the DC voltage converter includes a second three-level circuit. A control device controls the first and second multi-level circuits to suppress potential fluctuation at a neutral point between first and second capacitors.
    Type: Application
    Filed: August 22, 2008
    Publication date: June 9, 2011
    Inventors: Eduardo Sato, Masahiro Kinoshita, Yushin Yamamoto, Tasuaki Amboh