Patents by Inventor Hirohide Kumabe

Hirohide Kumabe 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).

  • Method for production of water-proofing sheet
    Patent number: 4612152
    Abstract: A method for the production of a water-proofing sheet by mixing a thermoplastic rubber with asphalt, and then shaping the mixture directly into sheet having exhaust grooves on its surface.The vapor coming from water contained in foundation which is covered with the water-proofing sheet is exhausted through the grooves.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: September 16, 1986
    Assignee: Daiawa Kobunshi Kogyo Co., Ltd.
    Inventors: Kazuhisa Kawabata, Hirohide Kumabe, Shunzo Kawai