Patents by Inventor Mitsuru Yoshimizu

Mitsuru Yoshimizu 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).

  • Pressurization device for battery cells
    Patent number: 10193181
    Abstract: A pressurization device has a housing accommodating a plurality of battery cells and a plurality of spacers fixed to housing at even intervals in the thickness direction and forming bag shapes capable of expanding and contracting in accordance with air pressure. In a state in which the spacers have been contracted, each space larger than the dimensions of the battery cells in the thickness direction is maintained between adjacent spacers. In a state in which the spacers have been expanded by increasing the air pressure inside the spacers by an air apparatus, the adjacent spacers pressurize the battery cells in the thickness direction.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: January 29, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoshikazu Niwa, Shigeyoshi Okada, Mitsuru Yoshimizu, Katsumi Kurosawa, Tetsuya Aono
  • Pressurization Device for Battery Cells
    Publication number: 20170133705
    Abstract: A pressurization device has a housing accommodating a plurality of battery cells and a plurality of spacers fixed to housing at even intervals in the thickness direction and forming bag shapes capable of expanding and contracting in accordance with air pressure. In a state in which the spacers have been contracted, each space larger than the dimensions of the battery cells in the thickness direction is maintained between adjacent spacers. In a state in which the spacers have been expanded by increasing the air pressure inside the spacers by an air apparatus, the adjacent spacers pressurize the battery cells in the thickness direction.
    Type: Application
    Filed: March 16, 2015
    Publication date: May 11, 2017
    Inventors: Yoshikazu Niwa, Shigeyoshi Okada, Mitsuru Yoshimizu, Katsumi Kurosawa, Tetsuya Aono