Patents by Inventor Kazuyoshi Oota

Kazuyoshi Oota 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).

  • Method for producing a spiral electrodes
    Patent number: 5478362
    Abstract: A method of producing a spiral electrode group comprising a step for preparing a beltlike positive electrode plate whose thickness and width PT are PW respectively, a beltlike negative electrode plate whose thickness and width are NT and NW respectively, a beltlike first separator whose width is longer than PW+2PT, and a beltlike second separator whose width is longer than NW+2NT; a second step of making a set of the first separator and the positive electrode plate by putting a central part of the first separator and a surface of the positive electrode plate together, and by putting each horizontal end of the first separator and each side surface of the positive electrode plate together; a third step of making a set of the second separator and the negative electrode plate by putting a central part of the second separator and a surface of the negative electrode plate together, and by putting each horizontal end of the second separator and each side surface of the negative electrode plate together; and a fourth
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: December 26, 1995
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuyoshi Oota, Kenji Inagaki, Makoto Kambayashi