Patents by Inventor Chieko SHIMIZU

Chieko SHIMIZU 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).

  • SOLID ELECTROLYTE MATERIAL AND ALL-SOLID-STATE BATTERY
    Publication number: 20240162480
    Abstract: A solid electrolyte material has a pair of surfaces which face each other and includes at least one of a predetermined halide-based solid electrolyte or a predetermined sulfide-based solid electrolyte, in which a surface ten-point average roughness RzJIS of at least one of the pair of surfaces falls in the range from 20 nm or more and 1500 nm or less.
    Type: Application
    Filed: March 28, 2022
    Publication date: May 16, 2024
    Applicant: TDK CORPORATION
    Inventors: Haruna KATO, Hisashi SUZUKI, Tetsuya UENO, Chieko SHIMIZU
  • Negative electrode and lithium ion secondary battery
    Patent number: 11411223
    Abstract: A negative electrode includes a current collector and a negative electrode layer coated on at least one surface of the current collector. The negative electrode layer containing either phosphorus or fluorine, and the phosphorus content or fluorine content in the central portion of the negative electrode layer differs from the average phosphorus content in the end portion outward from the central portion to the side or the average fluorine content, and the phosphorus content P1 in the central portion and the average phosphorus content in the end portion P2 is 1<P1/P2?1.30, or the fluorine content F1 in the central portion and the average fluorine content F2 in the end portion of the negative electrode satisfy 1<F1/F2?1.22.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 9, 2022
    Assignee: TDK CORPORATION
    Inventor: Chieko Shimizu
  • NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY
    Publication number: 20200274166
    Abstract: A negative electrode includes a current collector and a negative electrode layer coated on at least one surface of the current collector. The negative electrode layer containing either phosphorus or fluorine, and the phosphorus content or fluorine content in the central portion of the negative electrode layer differs from the average phosphorus content in the end portion outward from the central portion to the side or the average fluorine content, and the phosphorus content P1 in the central portion and the average phosphorus content in the end portion P2 is 1<P1/P2?1.30, or the fluorine content F1 in the central portion and the average fluorine content F2 in the end portion of the negative electrode satisfy 1<F1/F2?1.22.
    Type: Application
    Filed: March 22, 2019
    Publication date: August 27, 2020
    Applicant: TDK CORPORATION
    Inventor: Chieko SHIMIZU
  • SOLID-STATE LITHIUM ION CONDUCTOR AND ELECTROCHEMICAL DEVICE
    Publication number: 20140272602
    Abstract: A solid-state lithium ion conductor includes: Li, P, and S; and at least one metal element selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Zn, Cd, and Hg.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicant: TDK CORPORATION
    Inventors: Tokuhiko HANDA, Chieko SHIMIZU