Patents by Inventor Takaaki Fujioka

Takaaki Fujioka 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).

  • Covering metal structure for metallized metal layer in electronic part
    Patent number: 4626479
    Abstract: A surface metal layer composed mainly of gold is formed on the surface of a metallized metal layer on an insulating substrate through a first intermediate metal layer composed of a nickel/boron alloy and a second intermediate metal layer composed of a nickel/phosphorus alloy. In this surface layer, appearance of stains or occurrence of blistering is prevented, and this surface metal layer is excellent in appearance characteristics, electric characteristics and durability.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: December 2, 1986
    Assignee: Kyocera Corporation
    Inventors: Yoshihiro Hosoi, Takaaki Fujioka