Patents by Inventor Hitoshi Chujo

Hitoshi Chujo 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).

  • Process of continuous manufacture of light-weight foamed concrete
    Patent number: 4057608
    Abstract: Light-weight foamed concrete articles are advantageously manufactured in a continuous manner from a rapid setting hydraulic cement composition. The cement composition in the form of a dry powder and an aqueous foamed liquid containing a foaming agent and a setting retarder are separately and continuously introduced into a continuously stirred vessel where they are mixed into an aqueous foamed cement slurry within a short period of time. The foamed cement slurry is cast into the desired shape and, if desired, cured.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: November 8, 1977
    Assignees: Showa Denko Kabushiki Kaisha, Misawa Homes Institute of Research and Development
    Inventors: Akihiro Hashimoto, Shigeo Hayashi, Sadao Yamamoto, Hitoshi Chujo