Patents by Inventor Shuuhei Yoshida

Shuuhei Yoshida 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 and alkaline storage battery system each including negative electrode having the alloy
    Patent number: 9105947
    Abstract: To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a composition expressed by LaxReyMg1-x-yNin-m-vAlmTv (Re: rare earth element(s) including Y; T: Co, Mn, Zn; 0.17?x?0.64, 3.5?n?3.8, 0.06?m?0.22, v?0), and a main phase of an A5B19 type crystal structure. A ratio of X/Y of the concentration ratio X of Al to Ni in a surface layer and the concentration ratio Y of Al to Ni in a bulk layer is 0.36?X/Y?0.85. An alkaline storage battery includes the hydrogen storage alloy in its negative electrode. An alkaline storage battery system performs partial charge and discharge control.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 11, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hiromasa Sugii, Makoto Ochi, Shuuhei Yoshida, Yoshinobu Katayama, Kazuhiro Kitaoka, Masao Takee
  • HYDROGEN STORAGE ALLOY FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY AND ALKALINE STORAGE BATTERY SYSTEM EACH INCLUDING NEGATIVE ELECTRODE HAVING THE ALLOY
    Publication number: 20110229755
    Abstract: To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a composition expressed by LaxReyMg1-x-yNin-m-vAlmTv (Re; rare earth element(s) including Y; T: Co, Mn, Zn; 0.17?x?0.64, 3.5?n?3.8, 0.06?m?0.22, v?0), and a main phase of an A5B19 type crystal structure. A ratio of X/Y of the concentration ratio X of Al to Ni in a surface layer and the concentration ratio Y of Al to Ni in a bulk layer is 0.36?X/Y?0.85. An alkaline storage battery includes the hydrogen storage alloy in its negative electrode. An alkaline storage battery system performs partial charge and discharge control.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 22, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hiromasa Sugii, Makoto Ochi, Shuuhei Yoshida, Yoshinobu Katayama, Kazuhiro Kitaoka, Masao Takee