Patents by Inventor Tadashi Fukuwatari

Tadashi Fukuwatari 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).

  • Fiber reinforced cementitious substrate
    Patent number: 4085001
    Abstract: A process for preparing glass fiber-reinforced cement sheets by dewatering a slurry wherein at least one member selected from asbestos, cotton, flax, hemp, wool, or silk fibers is added to the aqueous cement-glass fiber slurry. The sheets so produced have increased bending strengths and improved peeling resistance.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: April 18, 1978
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Tadashi Fukuwatari, Kiyotaka Mishima, Hiroshi Ichimura, Hideaki Kurihara