Patents by Inventor Massatsu Shimomura

Massatsu Shimomura 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).

  • Preparing molded articles of fluorine-containing polymer with increased water-repellency
    Patent number: 5599489
    Abstract: A molded article of fluorine-containing polymer, especially of polytetrafluoroethylene, with increased water-repellency, and a jig for holding articles to be washed during washing processes using an aqueous washing medium. The molded article with superior water-repellency can be obtained by a treatment of the surface of fluorine-containing polymer with a fluorine-containing gas after roughening of the surface. The water-repellent jig made of the surface treated polytetrafluoroethylene is suited for use as a carrier for washing semi-conductor wafers and glass plates or guide rolls of a liquid crystal display device.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: February 4, 1997
    Assignees: Onoda Cement Co., Ltd., ASK Corporation
    Inventors: Yukinori Saiki, Mina Ichikawa, Massatsu Shimomura, Masahiro Ono, Nobuatsu Watanabe