Patents by Inventor Seisuke FUKUDA

Seisuke FUKUDA 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).

  • Method and system for estimating state of charge or depth of discharge of battery, and method and system for evaluating health of battery
    Patent number: 10534038
    Abstract: It is intended to recognize the state of charge or depth of discharge of the battery more accurately than conventional technologies and to recognize health of a battery appropriately. Complex impedance between positive and negative electrodes of the battery is determined at a plurality of frequencies, and the state of charge or depth of discharge of the battery is estimated by comparing frequency dependency of Warburg impedance of the determined complex impedances with frequency dependency of Warburg impedance corresponding to a known state of charge or depth of discharge of the battery.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 14, 2020
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Kohei Tanaka, Yoshitsugu Sone, Seisuke Fukuda, Masayuki Itagaki
  • METHOD AND SYSTEM FOR ESTIMATING STATE OF CHARGE OR DEPTH OF DISCHARGE OF BATTERY, AND METHOD AND SYSTEM FOR EVALUATING HEALTH OF BATTERY
    Publication number: 20180321326
    Abstract: It is intended to recognize the state of charge or depth of discharge of the battery more accurately than conventional technologies and to recognize health of a battery appropriately. Complex impedance between positive and negative electrodes of the battery is determined at a plurality of frequencies, and the state of charge or depth of discharge of the battery is estimated by comparing frequency dependency of Warburg impedance of the determined complex impedances with frequency dependency of Warburg impedance corresponding to a known state of charge or depth of discharge of the battery.
    Type: Application
    Filed: June 24, 2016
    Publication date: November 8, 2018
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Kohei TANAKA, Yoshitsugu SONE, Seisuke FUKUDA, Masayuki ITAGAKI