Patents by Inventor Akiyoshi Fukui

Akiyoshi Fukui 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).

  • DC power supply system and control method
    Patent number: 9780560
    Abstract: A DC power supply system and a control method, which can continue charging of a storage battery with a constant current even if an assist current is needed due to, for example, overload during charging of the storage battery and can suppress a current output from the storage battery as much as possible.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: October 3, 2017
    Assignees: Origin Electric Company, Limited, NTT FACILITIES, INC.
    Inventors: Tomonari Koizumi, Yasuo Masuda, Yusuke Kubota, Akiyoshi Fukui, Akira Matsumoto
  • DC Power Supply System and Control Method
    Publication number: 20130278056
    Abstract: A DC power supply system and a control method, which can continue charging of a storage battery with a constant current even if an assist current is needed due to, for example, overload during charging of the storage battery and can suppress a current output from the storage battery as much as possible.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 24, 2013
    Applicants: NTT Facilities, Inc., Origin Electric Company, Limited
    Inventors: Tomonari Koizumi, Yasuo Masuda, Yusuke Kubota, Akiyoshi Fukui, Akira Matsumoto