Patents by Inventor Ken Yabui

Ken Yabui 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 supply system and control device
    Patent number: 11146064
    Abstract: A power supply system includes a plurality of power conversion devices, a plurality of breakers, and a controller. The plurality of breakers are respectively connected to the plurality of power conversion devices and configured to perform switching of an electrical connection between the power conversion device and a power system, wherein the breaker switches an ON state and an OFF state. The controller is configured to control the breakers and switch connection states of the plurality of power conversion devices are switched, and the controller being configured to determine whether or not the connected breaker is in an ON state and electrically conducted to the power system and the number of the power conversion devices in a standby state reaches a predetermined number.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 12, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Shunsuke Kawachi, Mami Mizutani, Tsutomu Tanno, Tatsuya Hashimoto, Yasuhiro Ogura, Ken Yabui