Patents by Inventor Iwazou Takahashi

Iwazou Takahashi 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).

  • Publication number: 20060127757
    Abstract: The invention provides a mercury-free alkaline cell which does not generate a hydrogen gas. The alkaline cell according to the invention is composed of: a positive electrode; a negative electrode containing zinc alloy powder; a separator which separates the positive electrode from the negative electrode; an alkaline electrolyte; a positive electrode can imparted with the positive electrode, a negative electrode can imparted with the negative electrode, the negative electrode can having a tin-coated layer subjected to a thermal treatment at a melting point (232° C.) of tin or higher and coming in contact with the negative electrode via the tin-coated layer; and a gasket interposed between the positive electrode can and the negative electrode can.
    Type: Application
    Filed: November 29, 2005
    Publication date: June 15, 2006
    Inventors: Takeshi Shishido, Iwazou Takahashi, Shunji Watanabe, Tsugio Sakai
  • Publication number: 20060127758
    Abstract: The invention provides a mercury-free alkaline cell which does not generate a hydrogen gas. The alkaline cell according to the invention contains a positive electrode, a negative electrode comprising zinc alloy powder, a separator which separates the positive electrode from the negative electrode, an alkaline electrolyte, a positive electrode can imparted with the positive electrode, a negative electrode can imparted with the negative electrode which has a tin-coated layer formed after subjected to a surface treatment with an electrically conductive polymer and comes in contact with the negative electrode via the tin-coated layer and a gasket interposed between the positive electrode can and the negative electrode can.
    Type: Application
    Filed: November 29, 2005
    Publication date: June 15, 2006
    Inventors: Takeshi Shishido, Iwazou Takahashi, Shunji Watanabe, Tsugio Sakai