Patents by Inventor George Hatta

George Hatta 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).

  • Method of making a retainer for solid type roller bearing
    Patent number: 4502740
    Abstract: This specification discloses a method of manufacturing a retainer for solid type roller bearing, a retainer manufactured by the method, and a cutting edge member used in the method. The specification also discloses the formation of roller retaining pawls around a roller retaining hole by cutting and removing post-like projections over a predetermined length by the cutting edge member, the post-like projections being formed on the wall surfaces of rectangular holes of a ring-like retainer member.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: March 5, 1985
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Yukio Ohura, George Hatta, Tadao Nogawa