Patents by Inventor Saki NOTOYAMA

Saki NOTOYAMA 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).

  • Hydrogen storage alloy for alkaline storage battery and alkaline storage battery using the same
    Patent number: 12024757
    Abstract: A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, and an alkaline storage battery using the alloy, which has an AB3-type crystal structure as a main phase, represented by: (SmxLayRz)1-a-bMgaTbNicCodMe. (R is selected from Pr, Nd; T is selected from Ti, Zr, Hf; M is selected from V, Nb, Ta, Cr, Mo, W, Mn, Fe, Cu, Al, Si, P, B; the following conditions are met: 0<x<1.0, 0<y<1.0, 0.8?x+y?1.0, x+y+z=1.0; 0.93?(x?y)·(1?a?b)+4.5(a+b)?1.62, 0<a?0.45, 0?b?0.05, 0?d?0.7, 0?e?0.15, 2.85?c+d+e?3.15 and 0.01?d+e).
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: July 2, 2024
    Assignees: JAPAN METALS AND CHEMICALS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takao Sawa, Saki Notoyama, Naoyoshi Terashita, Katsuyuki Kudo, Makio Kon, Masashi Kodama, Hiroshi Nishiyama
  • HYDROGEN STORAGE ALLOY FOR ALKALINE STORAGE BATTERY
    Publication number: 20230076463
    Abstract: A hydrogen storage alloy suitable for a negative electrode of an alkaline storage battery is provided. The hydrogen storage alloy provided is a hydrogen storage alloy used for an alkaline storage battery that has, as a main phase, one or two crystal structures selected from an A2B7-type structure and an AB3-type structure, and that is represented by a general formula: (La1-a-bCeaSmb)1-cMgcNidAleCrf (where suffixes a, b, c, d, e, and f in this formula (1) meet the following conditions: 0<a?0.15; 0?b?0.15; 0.17?c?0.32; 0.02?e?0.10; 0?f?0.05; and 2.95?d+e+f?3.50.
    Type: Application
    Filed: February 16, 2021
    Publication date: March 9, 2023
    Applicant: JAPAN METALS AND CHEMICALS CO., LTD.
    Inventors: Takao SAWA, Saki NOTOYAMA, Tomoki SOUMA, Katsuyuki KUDO, Takuya WATANABE
  • 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
  • HYDROGEN STORAGE ALLOY FOR ALKALINE STORAGE BATTERY AND ALKALINE STORAGE BATTERY USING THE SAME
    Publication number: 20210408535
    Abstract: A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, and an alkaline storage battery using the alloy, which has an AB3-type crystal structure as a main phase, represented by: (SmxLayRz)1?a?bMgaTbNicCodMe. (R is selected from Pr, Nd; T is selected from Ti, Zr, Hf; M is selected from V, Nb, Ta, Cr, Mo, W, Mn, Fe, Cu, Al, Si, P, B; the following conditions are met: 0<x<1.0, 0<y<1.0, 0.8?x+y?1.0, x+y+z=1.0; 0.93?(x?y)·(1?a?b)+4.5(a+b)?1.62, 0<a?0.45, 0?b?0.05, 0?d?0.7, 0?e?0.15, 2.85?c+d+e?3.15 and 0.01?d+e).
    Type: Application
    Filed: October 1, 2019
    Publication date: December 30, 2021
    Applicants: JAPAN METALS AND CHEMICALS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takao SAWA, Saki NOTOYAMA, Naoyoshi TERASHITA, Katsuyuki KUDO, Makio KON, Masashi KODAMA, Hiroshi NISHIYAMA