Patents by Inventor Kyukichi Yamamoto

Kyukichi Yamamoto 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).

  • Inorganic elastic foamed products and method of the preparation thereof
    Patent number: 4320202
    Abstract: Elastic foamed products or articles having a much better heat resistance than that of the asbestos fiber foamed mass, prepared by drying of an aqueous fiber-dispersed slurry retaining bubbles and consisting essentially of inorganic fibers, synthetic fluormica of the non-restrictive swelling type and surface active agents. In the elastic foamed products, the inorganic fibers having films of the fluormica formed therebetween are evenly entangled with each other, said films having bubbles retained therein.
    Type: Grant
    Filed: March 5, 1980
    Date of Patent: March 16, 1982
    Assignee: Nichias Corporation
    Inventors: Kyukichi Yamamoto, Masaji Kurosawa, Taro Matsui