Patents by Inventor Takeo Hisada

Takeo Hisada 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).

  • Patent number: 7985487
    Abstract: Disclosed is a corrosion resistant conductive part, which is made by forming a thin plated gold layer of thickness 100 nm or less on a stainless steel sheet, and for which high corrosion resistance is guaranteed even with a very thin gold layer. The part is characterized in that the maximum value ā€œvā€ of atomic concentration of gold given by Auger analysis is at least 98% of the total atomic concentrations of all the elements, which is deemed to be 100%, in the thin gold layer ranging from the surface to the interface of the gold layer and the metal substrate, at which the descending curve of gold crosses the ascending curve of the most predominant component of the substrate metal.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: July 26, 2011
    Assignee: Daido Steel Co., Ltd.
    Inventors: Takeo Hisada, Yasushi Kaneta, Shinobu Takagi, Naoki Fuse
  • Publication number: 20050100758
    Abstract: Disclosed is a corrosion resistant conductive part, which is made by forming a thin plated gold layer of thickness 100 nm or less on a stainless steel sheet, and for which high corrosion resistance is guaranteed even with a very thin gold layer. The part is characterized in that the maximum value ā€œvā€ of atomic concentration of gold given by Auger analysis is at least 98% of the total atomic concentrations of all the elements, which is deemed to be 100%, in the thin gold layer ranging from the surface to the interface of the gold layer and the metal substrate, at which the descending curve of gold crosses the ascending curve of the most predominant component of the substrate metal.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 12, 2005
    Inventors: Takeo Hisada, Yasushi Kaneta, Shinobu Takagi, Naoki Fuse