Patents by Inventor Takayuki TOKUSHIGE

Takayuki TOKUSHIGE 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 storage system and method of controlling the same
    Patent number: 10263448
    Abstract: A power storage system supplies electric power to a load, and includes: a secondary battery; a capacitor connected in parallel to the secondary battery; and a controller performing control to prioritize charging and discharging of the capacitor over charging and discharging of the secondary battery.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: April 16, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Soichiro Bando, Masato Hayashi, Mikihiko Kataoka, Takayuki Tokushige, Tatsuya Ohno
  • Temperature control apparatus for electricity storage device for use in electricity storage system including electricity storage devices
    Patent number: 9975447
    Abstract: In a power storage system, a bidirectional DC-DC converter is set into mode for charging a secondary battery with electricity when a first state of charge (SOC) of the secondary battery is larger than a minimum value of the first SOC, and a second SOC of the capacitor is smaller than a maximum value of the second SOC, and the converter is set into mode for discharging electricity from the secondary battery when the first SOC is smaller than a maximum value of the first SOC, and the second SOC is larger than a minimum value of the second SOC. Based on an internal resistance of the secondary battery, the second SOC, a voltage of a direct current link in case of no load connected to DC link, and an error in a current on a direct current link side, a conduction ratio (D) of the converter is calculated.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: May 22, 2018
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takayuki Tokushige, Masato Hayashi, Mikihiko Kataoka, Soichiro Bando, Tatsuya Ohno
  • POWER STORAGE SYSTEM AND METHOD OF CONTROLLING THE SAME
    Publication number: 20170126025
    Abstract: A power storage system supplies electric power to a load, and includes: a secondary battery; a capacitor connected in parallel to the secondary battery; and a controller performing control to prioritize charging and discharging of the capacitor over charging and discharging of the secondary battery.
    Type: Application
    Filed: June 10, 2015
    Publication date: May 4, 2017
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Soichiro BANDO, Masato HAYASHI, Mikihiko KATAOKA, Takayuki TOKUSHIGE, Tatsuya OHNO
  • TEMPERATURE CONTROL APPARATUS FOR ELECTRICITY STORAGE DEVICE FOR USE IN ELECTRICITY STORAGE SYSTEM INCLUDING ELECTRICITY STORAGE DEVICES
    Publication number: 20160318418
    Abstract: In a power storage system, a bidirectional DC-DC converter is set into mode for charging a secondary battery with electricity when a first state of charge (SOC) of the secondary battery is larger than a minimum value of the first SOC, and a second SOC of the capacitor is smaller than a maximum value of the second SOC, and the converter is set into mode for discharging electricity from the secondary battery when the first SOC is smaller than a maximum value of the first SOC, and the second SOC is larger than a minimum value of the second SOC. Based on an internal resistance of the secondary battery, the second SOC, a voltage of a direct current link in case of no load connected to DC link, and an error in a current on a direct current link side, a conduction ratio (D) of the converter is calculated.
    Type: Application
    Filed: December 26, 2014
    Publication date: November 3, 2016
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takayuki TOKUSHIGE, Masato HAYASHI, Mikihiko KATAOKA, Soichiro BANDO, Tatsuya OHNO