Patents by Inventor Kenji Ichiya

Kenji Ichiya 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).

  • Anode material for use in alkaline manganese cells and process for producing the same
    Patent number: 6258484
    Abstract: Metallic zinc melted to a purity of 99.995% or higher was treated with selected elements that were dissolved in amounts within specified ranges and the resulting melts were atomized to prepare zinc alloy powders of 35-200 mesh; the powders were gelled with a gelling agent (sodium polyacrylate) and an electrolyte; bismuth compounds having specified powder characteristics (either an average particle size of no more than 10 &mgr;m or a specific surface area of at least 1 m2/g or both characteristics) were added in specified amounts to the gels, thereby producing gels of anode.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: July 10, 2001
    Assignee: Dowa Mining Co., Ltd.
    Inventors: Hideki Nagata, Masayoshi Matsumoto, Kenji Ichiya, Kazuya Saito