Patents by Inventor Mao TAKAYAMA

Mao TAKAYAMA 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).

  • Additive for electrochemical element positive electrode, composition for electrochemical element positive electrode including said additive, and electrochemical element
    Patent number: 12199286
    Abstract: The present invention relates to an additive for an electrochemical element positive electrode comprising an activated carbon, wherein the activated carbon has a specific surface area in accordance with BET method of 1300-2500 m2/g, a pore volume of pores having a diameter of 2 nm or more of 0.35 cm3/g or less, a pore volume of pores having a diameter less than 2 nm of 0.5 cm3/g or more, and an ash content of 0.5% by weight or less.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: January 14, 2025
    Assignee: KURARAY CO., LTD.
    Inventors: Kengo Tachikawa, Mao Takayama, Yoshihisa Inui, Hiroyuki Nishinami, Yumika Nishita, Shushi Nishimura
  • ADDITIVE FOR ELECTROCHEMICAL ELEMENT POSITIVE ELECTRODE, COMPOSITION FOR ELECTROCHEMICAL ELEMENT POSITIVE ELECTRODE INCLUDING SAID ADDITIVE, AND ELECTROCHEMICAL ELEMENT
    Publication number: 20230178748
    Abstract: The present invention relates to an additive for an electrochemical element positive electrode comprising an activated carbon, wherein the activated carbon has a specific surface area in accordance with BET method of 1300-2500 m2/g, a pore volume of pores having a diameter of 2 nm or more of 0.35 cm3/g or less, a pore volume of pores having a diameter less than 2 nm of 0.5 cm3/g or more, and an ash content of 0.5% by weight or less.
    Type: Application
    Filed: March 12, 2021
    Publication date: June 8, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Kengo TACHIKAWA, Mao TAKAYAMA, Yoshihisa INUI, Hiroyuki NISHINAMI, Yumika NISHITA, Shushi NISHIMURA