Patents by Inventor Kiyoto IKEBATA

Kiyoto IKEBATA 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 ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SAME
    Publication number: 20240072253
    Abstract: Provided is a positive-electrode active material for a nonaqueous electrolyte secondary battery, including a lithium transition metal composite oxide particle having a layered structure and containing nickel, and an oxide containing lithium and aluminum and an oxide containing lithium and boron adhering to a surface of the lithium transition metal composite oxide particle. The lithium transition metal composite oxide particle includes a secondary particle formed by aggregation of primary particles containing a solid solution of aluminum in a surface layer. The lithium transition metal composite oxide particles have a composition with a difference of more than 0.22 mol % and less than 0.
    Type: Application
    Filed: October 26, 2023
    Publication date: February 29, 2024
    Applicant: NICHIA CORPORATION
    Inventors: Kumi YOSHIHARA, Kosuke SHIMOKITA, Kiyoto IKEBATA, Takashi SUGIMOTO
  • Positive electrode active material for nonaqueous secondary battery, and method for manufacturing same
    Patent number: 11837723
    Abstract: Provided is a positive-electrode active material for a nonaqueous electrolyte secondary battery, including a lithium transition metal composite oxide particle having a layered structure and containing nickel, and an oxide containing lithium and aluminum and an oxide containing lithium and boron adhering to a surface of the lithium transition metal composite oxide particle. The lithium transition metal composite oxide particle includes a secondary particle formed by aggregation of primary particles containing a solid solution of aluminum in a surface layer. The lithium transition metal composite oxide particles have a composition with a difference of more than 0.22 mol % and less than 0.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: December 5, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Kumi Yoshihara, Kosuke Shimokita, Kiyoto Ikebata, Takashi Sugimoto
  • POSITIVE ELECTRODE ACTIVE MATERIAL AND POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20230327079
    Abstract: Provided is a positive electrode active material which inhibits a decrease in discharge capacity while improving output in a low SOC region. The positive electrode active material includes: first particles that each consist of a first lithium transition metal composite oxide, the first lithium transition metal composite oxide having a layered structure and having a ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a composition thereof being 0.
    Type: Application
    Filed: August 24, 2021
    Publication date: October 12, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Kento ISAI, Kenichi KOBAYASHI, Kiyoto IKEBATA, Koichi SUMIWAKA, Hayato ISHIBASHI
  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SAME
    Publication number: 20200266441
    Abstract: Provided is a positive-electrode active material for a nonaqueous electrolyte secondary battery, including a lithium transition metal composite oxide particle having a layered structure and containing nickel, and an oxide containing lithium and aluminum and an oxide containing lithium and boron adhering to a surface of the lithium transition metal composite oxide particle. The lithium transition metal composite oxide particle includes a secondary particle formed by aggregation of primary particles containing a solid solution of aluminum in a surface layer. The lithium transition metal composite oxide particles have a composition with a difference of more than 0.22 mol % and less than 0.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 20, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Kumi YOSHIHARA, Kosuke SHIMOKITA, Kiyoto IKEBATA, Takashi SUGIMOTO