Patents by Inventor Yukio Nitta

Yukio Nitta 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).

  • Electrical insulating bearing
    Patent number: 5059041
    Abstract: A bearing is provided with a rolling element interposed between an outer ring and an inner ring thereof. The outer ring of the bearing is formed by integrating three elements, a metallic outer ring body having a path of rotation for the rolling elements, an insulating thin film made of a polymer elastic material having an electrical insulating property and covering a portion where the outer ring body is mounted to a housing, and a thin metallic plate provided on an outer surface of the insulating thin film.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: October 22, 1991
    Assignees: Railway Technical Research Institute, Bando Chemical Industries, Ltd.
    Inventors: Tomoki Watanabe, Yukio Nitta, Kouichi Sato, Yoshiya Fuse, Koji Kinoshita