Patents by Inventor Eitaroh Fukutaka

Eitaroh Fukutaka 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).

  • Conductive polypropylene resin foam sheet and receptacle
    Patent number: 7390563
    Abstract: An electroconductive polypropylene type resin foamed sheet comprising a polypropylene type resin foamed sheet, and an electroconductive coating material layer and, preferably, a resin layer, formed on at least one side of the foamed sheet, and having a density of at least 180 kgm?3 and less than 850 kgm?3, wherein the resin layer has a surface resistance of less than 1012 ?/?. A container made of such an electroconductive polypropylene type resin foamed sheet is useful for packaging an electronic component.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: June 24, 2008
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuichi Kadoya, Hirokazu Kawauchi, Eitaroh Fukutaka