Patents by Inventor Yuma KITAE

Yuma KITAE 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).

  • POSITIVE ELECTRODE COMPOSITION, COATING LIQUID FOR FORMING POSITIVE ELECTRODE, POSITIVE ELECTRODE, BATTERY, METHOD FOR PRODUCING COATING LIQUID FOR FORMING POSITIVE ELECTRODE, METHOD FOR PRODUCING POSITIVE ELECTRODE, AND METHOD FOR PRODUCING BATTERY
    Publication number: 20260204568
    Abstract: A positive electrode composition containing a first carbon black, a second carbon black, and an active material, wherein: the first carbon black has a BET specific surface area of 200 m2/g or more and a crystallite size (Lc) of 17 ? or less; the second carbon black has a BET specific surface area of 100 m2/g or more and a crystallite size (Lc) of 19 ? or more; and a ratio C2/C1 of a content C2 of the second carbon black with respect to a content C1 of the first carbon black is 0.1 or more and 0.45 or less.
    Type: Application
    Filed: October 17, 2023
    Publication date: July 16, 2026
    Inventors: Tatsuya NAGAI, Mizuki MATSUI, Yuma KITAE, Tetsuya ITO
  • METHOD FOR PRODUCING POSITIVE ELECTRODE COMPOSITION AND METHOD FOR PRODUCING POSITIVE ELECTRODE
    Publication number: 20250132346
    Abstract: A method for producing a positive electrode composition, the method including: a first step of mixing a first agent containing a binding material and a first liquid medium, a second agent containing carbon black and a second liquid medium, and a third agent containing carbon nanotubes and a third liquid medium to obtain a mixed solution; and a second step of mixing the mixed solution and an active material to obtain a positive electrode composition.
    Type: Application
    Filed: August 16, 2022
    Publication date: April 24, 2025
    Applicant: Denka Company Limited
    Inventors: Tatsuya NAGAI, Yuma KITAE, Tetsuya ITO
  • POSITIVE ELECTRODE COMPOSITION, POSITIVE ELECTRODE, AND BATTERY
    Publication number: 20240290971
    Abstract: A positive electrode composition containing carbon black, carbon nanotubes, an active material, and a binding material, in which the carbon black has a BET specific surface area of 100 to 400 m2/g and a crystallite size (Lc) of 15 to 26 ?, the carbon nanotubes have an average diameter of 5 to 15 nm, and a ratio (average diameter/BET specific surface area) of the average diameter with respect to a BET specific surface area of the carbon nanotubes is 0.01 to 0.068 nm/(m2/g).
    Type: Application
    Filed: June 14, 2022
    Publication date: August 29, 2024
    Applicant: Denka Company Limited
    Inventors: Tatsuya NAGAI, Yuma KITAE, Tetsuya ITO