Patents by Inventor Aoi Hatanaka

Aoi Hatanaka 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).

  • Publication number: 20220020082
    Abstract: A rental information generation device includes: a requirement information acquisition unit configured to acquire requirement information of a user regarding use of an electric vehicle equipped with a secondary battery; a stock information acquisition unit configured to acquire stock information of objects including at least either one of a secondary battery and an electric vehicle; a decision unit configured to decide an object selection condition on the basis of the acquired requirement information and stock information; and a generation unit configured to generate rental information regarding an object to be rented out to the user on the basis of the decided selection condition.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 20, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tomomi KATAOKA, Hiroaki TAKECHI, Aoi HATANAKA
  • Patent number: 10656213
    Abstract: An internal resistance calculation device is provided with: a voltage obtaining portion that obtains the voltage of a secondary battery; a current obtaining portion that obtains the current of the secondary battery; a switching determination portion that determines the presence or absence of switching between charging and discharging of the secondary battery based on the obtained current; an identification portion that identifies a waiting time based on a boundary frequency range in which the diffusion impedance arising from the process of diffusion of a predetermined ion contributes to the impedance of the secondary battery in the impedance spectrum of the secondary battery; and a resistance calculation portion that calculates the internal resistance of the secondary battery based on the voltage and the current obtained after the identified waiting time in a case where it is determined that switching between charging and discharging of the secondary battery is present.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 19, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hiroaki Takechi, Tomomi Kataoka, Youhei Yamaguchi, Aoi Hatanaka
  • Publication number: 20180252776
    Abstract: An internal resistance calculation device is provided with: a voltage obtaining portion that obtains the voltage of a secondary battery; a current obtaining portion that obtains the current of the secondary battery; a switching determination portion that determines the presence or absence of switching between charging and discharging of the secondary battery based on the obtained current; an identification portion that identifies a waiting time based on a boundary frequency range in which the diffusion impedance arising from the process of diffusion of a predetermined ion contributes to the impedance of the secondary battery in the impedance spectrum of the secondary battery; and a resistance calculation portion that calculates the internal resistance of the secondary battery based on the voltage and the current obtained after the identified waiting time in a case where it is determined that switching between charging and discharging of the secondary battery is present.
    Type: Application
    Filed: June 23, 2016
    Publication date: September 6, 2018
    Inventors: Hiroaki Takechi, Tomomi Kataoka, Youhei Yamaguchi, Aoi Hatanaka