Patents by Inventor OBAYASHI CORPORATION

OBAYASHI CORPORATION 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).

  • WATERPROOFING AGENT FOR WATERPROOF SHEET REPAIR METHOD
    Publication number: 20130089661
    Abstract: A waterproofing agent for repairing a damaged portion of a waterproof sheet spread on the ground, the waterproofing agent being a urethane-based waterproofing agent obtained by mixing a primary agent containing an isocyanate component and a curing agent containing a polyester polyol obtained from castor oil and a plasticizing agent component.
    Type: Application
    Filed: November 28, 2012
    Publication date: April 11, 2013
    Applicants: DYPLEX CORPORATION, OBAYASHI CORPORATION
    Inventors: OBAYASHI CORPORATION, DYPLEX CORPORATION