Patents by Inventor Sempei YOKOYAMA

Sempei YOKOYAMA 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).

  • CHARGE/DISCHARGE TEST SYSTEM AND CONTROL METHOD FOR CHARGE/DISCHARGE TEST SYSTEM
    Publication number: 20250233438
    Abstract: A charge/discharge test system includes a bidirectional AC/DC converter connected to an AC power supply (an AC power supply), an isolated bidirectional DC/DC converter that has one end connected to a first DC bus and the other end connected to a second DC bus, a plurality of non-isolated bidirectional DC/DC converters that have one ends connected to the second DC bus and the other ends connected to charge/discharge targets (batteries) different from each other, and a charge/discharge controlling unit (ET control unit). The charge/discharge controlling unit charges power output from at least one of the charge/discharge targets via the non-isolated bidirectional DC/DC converter into at least one of the charge/discharge targets via the second DC bus and at least one of the non-isolated bidirectional DC/DC converters.
    Type: Application
    Filed: April 3, 2025
    Publication date: July 17, 2025
    Applicant: Tokyo Seimitsu Co., Ltd.
    Inventor: Sempei YOKOYAMA