Patents by Inventor Hidekiyo Gohda

Hidekiyo Gohda 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 draining water or moisture from substratum for waterproofing layer
    Patent number: 3933546
    Abstract: A method for draining water or moisture from a substratum for a waterproofing layer in buildings comprising applying to the substratum such as concrete or mortar a sintered product of a thermoplastic resin, having a capillary structure comprising numeral, fine and interconnecting pores and voids of 20 to 70 percent, selected from the group consisting of a sintered plate and a sintered hollow product in a form of a belt or tube, wherein at least a part of the sintered product is protruded into the atmosphere and applying thereto a waterproofing layer, and thereby making the water or moisture contained in the substratum evaporate through the sintered product.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: January 20, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hidekiyo Gohda, Takashi Kiku