Patents by Inventor Hideyuki Udagawa

Hideyuki Udagawa 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).

  • Cement composition containing dextrin
    Patent number: 4302251
    Abstract: A cement composition is provided which comprises a cement, and 0.1 to 2.5% by weight, based on the weight of said cement, of a dextrin having a cold-water solubility of from 10 to 80% by weight. The cement composition of the invention suppresses heat of hydration, so that the cement mortar or concrete do not crack due to the heat of hydration.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: November 24, 1981
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideyuki Udagawa, Tetsuya Ando, Iwao Kibayashi