Patents by Inventor Fumiko Homma

Fumiko Homma 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 preparing positive electrode for non-aqueous electrolyte cell
    Patent number: 4601919
    Abstract: A method for preparing a positive electrode for a non-aqueous electrolyte cell comprises applying a positive electrode-active material, an electrically conductive agent, a dispersion of polytetrafluoroethylene and a mixture of polyacrylic acid and water on one side or both sides of a supporting material, and then drying the coated supporting material at about 250.degree. C. for 5 to 10 hours.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: July 22, 1986
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Yoshiaki Asami, Shintaro Suzuki, Hirotsugu Fujita, Fumiko Homma
  • Flat cell
    Patent number: 4548880
    Abstract: Disclosed is a flat cell comprising a positive electrode metal plate, a negative electrode metal plate confronted with said positive electrode metal plate, and an adhesive sealing member for sealing the peripheral edge portions of said metal plates, characterized in that said sealing member has a three-layer structure in which ionomer resin pieces are disposed on the opposite sides of a polyethylene piece or an ethylene copolymer piece.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: October 22, 1985
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Shintaro Suzuki, Hirotsugu Fujita, Yoshiaki Asami, Fumiko Homma