Patents by Inventor Takeo OKANISHI

Takeo OKANISHI 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).

  • Negative electrode active material, negative electrode, alkaline storage battery, and method of producing negative electrode active material
    Patent number: 11916230
    Abstract: A negative electrode active material includes a hydrogen storage alloy. The hydrogen storage alloy has an A2B7 crystal structure. The hydrogen storage alloy includes nickel. The saturation magnetization per unit mass is 1.9 emu·g?1 or more.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: February 27, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masato Hozumi, Motoyoshi Okumura, Takeo Okanishi, Atsushi Minagata
  • HYDROGEN STORAGE ALLOY FOR ALKALINE STORAGE BATTERY, ALKALINE STORAGE BATTERY USING THE SAME AS NEGATIVE ELECTRODE, AND VEHICLE
    Publication number: 20220190327
    Abstract: A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, an alkaline storage battery using this hydrogen storage alloy, and a vehicle; wherein a fine-grained hydrogen storage alloy is used for an alkaline storage battery that has a crystal structure of an A2B7-type structure as a main phase and is represented by a general formula: (La1-aSma)1-bMgbNicAldCre (where suffixes a, b, c, d, and e meet the following conditions: 0?a?0.35, 0.15?b?0.30, 0.02?d?0.10, 0?e?0.10, 3.20?c+d+e?3.50, and 0<a+e), and an alkaline storage battery using this hydrogen storage alloy for a negative electrode. A vehicle also includes this alkaline storage battery as an electricity supply source for a motor.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 16, 2022
    Applicants: JAPAN METALS AND CHEMICALS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takao SAWA, Saki NOTOYAMA, Tomoki SOUMA, Katsuyuki KUDO, Takuya WATANABE, Masato HOZUMI, Motoyoshi OKUMURA, Masashi KODAMA, Takuro KIKUCHI, Takeo OKANISHI, Atsushi MINAGATA, Shuhei MOCHIDA, Hiroyuki SASAKI, Satoshi KONO
  • NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, ALKALINE STORAGE BATTERY, AND METHOD OF PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL
    Publication number: 20200185710
    Abstract: A negative electrode active material includes a hydrogen storage alloy. The hydrogen storage alloy has an A2B7 crystal structure. The hydrogen storage alloy includes nickel. The saturation magnetization per unit mass is 1.9 emu·g?1 or more.
    Type: Application
    Filed: November 19, 2019
    Publication date: June 11, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masato HOZUMI, Motoyoshi OKUMURA, Takeo OKANISHI, Atsushi MINAGATA