Patents by Inventor Ryouji Iijima

Ryouji Iijima 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).

  • Aluminum member provided with weather-resistant coat
    Patent number: 5252399
    Abstract: An aluminum member provided with a weather-resistant coat having good corrosion resistance, weather resistance, paintability, etc., the coat having (a) a primer layer of an epoxy polyester-based, hybrid powder coating composition formed on an aluminum member; (b) a base coat layer of a metallic acrylic coating composition formed on the primer layer; and (c) a barrier coat layer of a high solid-type, clear, acrylic coating composition formed on the base coat layer.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: October 12, 1993
    Assignee: Hitachi Metal Ltd.
    Inventors: Seiji Hirata, Nobuhiko Katagiri, Ryouji Iijima