Patents by Inventor Susumu Waki

Susumu Waki 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 polishing surface of transparent substrate layer of color filter unit
    Patent number: 5347766
    Abstract: The present invention provides a method for polishing the surface of the transparent substrate layer of a color filter unit comprising a transparent substrate layer, a color filter layer, a protective film layer and a transparent electrode layer, which method comprises attaching, to the surface of the transparent electrode layer, a pressure-sensitive tape consisting of a base film layer and a pressure-sensitive adhesive layer giving substantially no staining to said surface of the transparent electrode layer, formed on one surface of the base film layer, as well as a pressure-sensitive tape used in the method. When the surface of the transparent substrate layer is polished according to the present method, there occurs no breakage of the color filter unit. Further, there occurs no staining of the surface of the transparent electrode layer owing to the adhesion of residual pressure-sensitive adhesive, abrasive, polishing refuse, etc.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: September 20, 1994
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kazuyoshi Komatsu, Osamu Narimatsu, Yasuo Takemura, Yoko Takeuchi, Susumu Waki