Patents by Inventor Isao ISOGAI

Isao ISOGAI 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 converter that converts input AC power into DC power and power conversion method of power converter that converts input AC power into DC power
    Patent number: 10658924
    Abstract: A power converter includes an input voltage detection section, a power factor correction (PFC) section, a DC-DC conversion section, and a control section that stops power conversion operation in a case where an input voltage value is greater than or equal to a predetermined value. The control section resumes power conversion operation such that a second input current value lower than a first input current value corresponding to the input voltage value is input into the PFC section after stopping the power conversion operation.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: May 19, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shuhei Chizuwa, Isao Isogai
  • POWER CONVERTER AND POWER CONVERSION METHOD
    Publication number: 20190229611
    Abstract: A power converter includes an input voltage detection section, a power factor correction (PFC) section, a DC-DC conversion section, and a control section that stops power conversion operation in a case where an input voltage value is greater than or equal to a predetermined value. The control section resumes power conversion operation such that a second input current value lower than a first input current value corresponding to the input voltage value is input into the PFC section after stopping the power conversion operation.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Inventors: Shuhei CHIZUWA, Isao ISOGAI