Patents by Inventor Eihiro Suruga

Eihiro Suruga 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).

  • Self-aligning roller bearing
    Patent number: 4929098
    Abstract: A self-aligning roller bearing having a plurality of spherical rollers disposed between the track surface of an inner race and the track surface of an outer race. Each roller has a rolling surface generator having central portion corresponding to at least 80% of the rolling surface axial length and of a single radius of curvature smaller than those of the inner and outer track surfaces. The rolling surface generator also has opposite end portions each with one or more radii of curvature smaller than that of the central portion.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: May 29, 1990
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Hirotoshi Takata, Eihiro Suruga, Gentei Inoue