Patents by Inventor Katuaki Iiyama

Katuaki Iiyama 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).

  • Adhesive composition for ceramic tiles
    Patent number: 4590230
    Abstract: Disclosed herein is an adhesive composition which contains specific amounts of (A) an aqueous emulsion, (B) a filler and (C) a resin solution of a resinous tackifier dissolved in a solvent and/or plasticizer. The adhesive composition has a fast setting time in adhesion strength and excellent water-proofness and hence produces superb adhesion force even when applied to a fresh mortar base which has been aged insufficiently.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: May 20, 1986
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Keiichi Kamada, Katuaki Iiyama, Yasushi Yano, Isao Itoh