Patents by Inventor Hiroaki Aihara

Hiroaki Aihara 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).

  • Flat cell
    Patent number: 4732825
    Abstract: A flat cell is sealed along the confronting peripheral inner surfaces of positive and negative terminal plates. A pair of sealing films are disposed on the respective peripheral inner surfaces. Each sealing film is comprised of a first thermoplastic layer composed of maleic acid modified polyethylene thermally secured to the peripheral inner surface, a second intermediate thermoplastic layer composed of high-density polyethylene and a third thermoplastic layer composed of maleic acid modified polyethylene so that the confronting third layers of the pair of sealing films are thermally secured to each other to seal the flat cell.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: March 22, 1988
    Assignee: Seiko Electronic Components Ltd.
    Inventors: Nobuo Kamata, Iwao Kishi, Toyoo Harada, Kazutoshi Takeda, Hiroaki Aihara, Tatsuo Arakawa