Patents by Inventor Toshiyasu Okui

Toshiyasu Okui 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 modification of surface of pressure-sensitive adhesive with functional group
    Patent number: 6103302
    Abstract: A modification method of functional group on the surface of a pressure-sensitive adhesive by fixing a functional group to the surface of the pressure-sensitive adhesive by an interfacial contact reaction between the pressure-sensitive adhesive phase and the phase containing a functional group-containing compound.By the modification method, a functional group effective for the improvement and control of an adhesive property can stably be introduced at high density to the surface of the pressure-sensitive adhesive.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: August 15, 2000
    Assignee: Nitto Denko Corporation
    Inventors: Yoshihiro Minamizaki, Hajime Tsuchiya, Yasuhiro Umemoto, Toshiyasu Okui