Patents by Inventor Naoya Kuramoto

Naoya Kuramoto 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).

  • Foam-containing slurry to make porous, inorganic construction material
    Patent number: 3963507
    Abstract: Foam-containing slurry for making porous, inorganic construction material composed of 100 parts by weight of water [I], 35 to 350 parts by weight of hydraulic substance [II], and 0.02 to 1.20 parts of foaming agent [III], the foaming agent [III] comprising (1) as the foaming component, 0.05 to 20 parts by weight of water-soluble, low-viscosity cellulose derivatives, (2) as the foam stabilizer, 1 part by weight of water-soluble, high-viscosity cellulose derivatives, and (3) as the foaming accelerator, at least 1 part by weight of at least 75% saponified polyvinyl alcohol.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: June 15, 1976
    Assignee: Teijin Limited
    Inventors: Naoya Kuramoto, Hachiro Saito, Wataru Yamamoto