Patents Assigned to Notoshiti Corporation
  • Machine parts with wear-resistant surface brought into contact with elongated fibrous member
    Patent number: 4822662
    Abstract: Machine parts to be brought into contact with an elongated fibrous member each consists of a substrate of an iron series metal and a surface layer which has high wear-resistance and a good sliding property, and which contains chromium oxide as a major constituent. The chromium oxide is converted from a chromium compound upon heating. An intermediate layer containing a reaction product between the chromium oxide in the surface layer and the substrate is formed at an interface between the surface layer and the substrate.
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: April 18, 1989
    Assignees: Kabushiki Kaisha Toshiba, Yano Kousakujo Corporation, Notoshiti Corporation
    Inventors: Takashi Ishii, Hajime Kohama, Hisao Yabe, Akira Yano, Shinsuke Noto