Patents by Inventor Naomi Katsura

Naomi Katsura 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).

  • Polymeric film
    Patent number: 5910370
    Abstract: A polymeric film has a substrate layer having a primer layer of a polymer containing at least one ethylenically unsaturated group, and a silicone resin coating layer on the surface of the primer layer. The substrate is preferably a polyester film. The primer layer polymer is preferably a polyurethane resin. The polymeric film is particularly suitable for use as a release film.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: June 8, 1999
    Assignee: ICI Americas Inc
    Inventors: Naomi Katsura, Hikaru Takeuchi, Yuka Watanabe
  • Polymeric film
    Patent number: 5667889
    Abstract: A polymeric film has a substrate layer having a primer layer of a polyurethane resin containing at least one ethylenically unsaturated group. The primer layer provides good adhesion to a subsequently applied release layer. The substrate is preferably a polyester film. Suitable release layers contain cured silicone resins.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: September 16, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventors: Naomi Katsura, Hikaru Takeuchi, Yuka Watanabe