Patents by Inventor Reiji TOMINAGA

Reiji TOMINAGA 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).

  • Switching device, switching power supply apparatus, and vehicle having zero-crossing point detection time correction
    Patent number: 11799390
    Abstract: A prevention switching device is provided. The apparatus includes a switching circuit and a controller. The switching circuit includes a switching relay capable of switching a connection destination of a first power conversion circuit other than a second power conversion circuit among the plurality of power conversion circuits between a phase corresponding to the first power conversion circuit and a certain phase of the external power supply. The second power conversion circuit corresponds to the certain phase of the external power supply. The controller controls an operation of the switching relay at a zero-crossing time of an AC voltage estimated based on the AC voltage.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: October 24, 2023
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yuji Kodera, Yuji Shibano, Reiji Tominaga, Shuji Harimoto, Satoshi Tomie, Takao Miyamoto
  • SWITCHING DEVICE, SWITCHING POWER SUPPLY APPARATUS, AND VEHICLE
    Publication number: 20210305908
    Abstract: A prevention switching device is provided. The apparatus includes a switching circuit and a controller. The switching circuit includes a switching relay capable of switching a connection destination of a first power conversion circuit other than a second power conversion circuit among the plurality of power conversion circuits between a phase corresponding to the first power conversion circuit and a certain phase of the external power supply. The second power conversion circuit corresponds to the certain phase of the external power supply. The controller controls an operation of the switching relay at a zero-crossing time of an AC voltage estimated based on the AC voltage.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 30, 2021
    Inventors: Yuji KODERA, Yuji SHIBANO, Reiji TOMINAGA, Shuji HARIMOTO, Satoshi TOMIE, Takao MIYAMOTO