Patents by Inventor Hideki Miyawaki

Hideki Miyawaki 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).

  • Bipolar plate, cell frame, battery cell, cell stack, and redox flow battery
    Patent number: 11367880
    Abstract: A bipolar plate to be arranged opposite to an electrode that is supplied with an electrolyte solution to cause a battery reaction includes a plurality of groove portions in which the electrolyte solution flows and rib portions that each separate the adjacent groove portions on at least one of its front and back surfaces. A specific rib portion including a contact surface to be brought into contact with the electrode and one or more recessed portions that are open in the contact surface is included among the rib portions.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: June 21, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yongrong Dong, Hideki Miyawaki
  • Redox flow battery, electrical quantity measurement system, and electrical quantity measurement method
    Patent number: 11005111
    Abstract: A redox flow battery includes a battery cell to which a positive electrolyte and a negative electrolyte are supplied, and an electrical quantity measurement system configured to measure a quantity of electricity when a predetermined amount of electrolyte is discharged, for at least one of the positive electrolyte and the negative electrolyte.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: May 11, 2021
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yasuhiro Naitou, Yongrong Dong, Hideki Miyawaki, Yoshiyasu Kawagoe
  • BIPOLAR PLATE, CELL FRAME, BATTERY CELL, CELL STACK, AND REDOX FLOW BATTERY
    Publication number: 20200161669
    Abstract: A bipolar plate to be arranged opposite to an electrode that is supplied with an electrolyte solution to cause a battery reaction includes a plurality of groove portions in which the electrolyte solution flows and rib portions that each separate the adjacent groove portions on at least one of its front and back surfaces. A specific rib portion including a contact surface to be brought into contact with the electrode and one or more recessed portions that are open in the contact surface is included among the rib portions.
    Type: Application
    Filed: June 26, 2018
    Publication date: May 21, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yongrong DONG, Hideki MIYAWAKI
  • REDOX FLOW BATTERY, ELECTRICAL QUANTITY MEASUREMENT SYSTEM, AND ELECTRICAL QUANTITY MEASUREMENT METHOD
    Publication number: 20190165384
    Abstract: A redox flow battery includes a battery cell to which a positive electrolyte and a negative electrolyte are supplied, and an electrical quantity measurement system configured to measure a quantity of electricity when a predetermined amount of electrolyte is discharged, for at least one of the positive electrolyte and the negative electrolyte.
    Type: Application
    Filed: June 16, 2017
    Publication date: May 30, 2019
    Inventors: Yasuhiro Naitou, Yongrong Dong, Hideki Miyawaki, Yoshiyasu Kawagoe
  • Method of operating redox flow battery, and redox flow battery system
    Patent number: 10199672
    Abstract: Provided is a method of operating an RF battery in which charging and discharging are performed by circulating and supplying a positive electrode electrolyte in a positive electrode tank to a positive electrode and circulating and supplying a negative electrode electrolyte in a negative electrode tank to a negative electrode. The positive electrode electrolyte contains manganese ions and added metal ions. The negative electrode electrolyte contains at least one species of metal ions selected from the group consisting of titanium ions, vanadium ions, and chromium ions. The added metal ions are at least one selected from the group consisting of cadmium ions, tin ions, antimony ions, lead ions, and bismuth ions.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: February 5, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yongrong Dong, Hideki Miyawaki
  • METHOD OF OPERATING REDOX FLOW BATTERY, AND REDOX FLOW BATTERY SYSTEM
    Publication number: 20180269512
    Abstract: Provided is a method of operating an RF battery in which charging and discharging are performed by circulating and supplying a positive electrode electrolyte in a positive electrode tank to a positive electrode and circulating and supplying a negative electrode electrolyte in a negative electrode tank to a negative electrode. The positive electrode electrolyte contains manganese ions and added metal ions. The negative electrode electrolyte contains at least one species of metal ions selected from the group consisting of titanium ions, vanadium ions, and chromium ions. The added metal ions are at least one selected from the group consisting of cadmium ions, tin ions, antimony ions, lead ions, and bismuth ions.
    Type: Application
    Filed: December 7, 2015
    Publication date: September 20, 2018
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Yongrong Dong, Hideki Miyawaki