Patents by Inventor Kyozo Suga

Kyozo Suga 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).

  • Collapsable dam
    Patent number: 4279540
    Abstract: A deformable dam made of an impermeable flexible membrane secured in a water tight manner to the bottom and side walls of a river. The flexible membrane is inflatable using either air or water, or a combination to vary the overall effective length of the dam.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: July 21, 1981
    Assignees: Kazuto Nakazawa, General Director Public Works Research Institute Ministry of Construction, Sumitomo Electric Industries, Ltd.
    Inventors: Kyozo Suga, Jinya Iizuka, Yoshiomi Tsuji