Patents by Inventor Tatsuyuki Kamijo

Tatsuyuki Kamijo 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).

  • Patent number: 6183567
    Abstract: A graffiti removing method including the steps of: applying a solvent condensation type silicone resin coating composition having water repellency onto a surface of a base material of a structure through a primer layer to form an adhesion-resistant surface layer on the primer layer; applying a releasable coating composition onto the surface layer to form a releasable layer, after graffiti are written onto the surface layer; and releasing the releasable layer from the surface layer after the releasable layer is hardened to thereby remove the graffiti together with the releasable layer from a surface of the surface layer, whereby although graffiti remaining on a surface layer are generally removed by wiping, or the like, not only it is difficult to wipe off graffiti but also the surface layer may be injured.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: February 6, 2001
    Assignee: Sho-Bond Corporation
    Inventors: Tatsuyuki Kamijo, Katsuyuki Miyasato, Hideo Tateno