Patents by Inventor Na Ra Sin

Na Ra Sin 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).

  • SYNCHRONIZER HUB FOR VEHICLES AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20170203367
    Abstract: A synchronizer hub for vehicles and a method for manufacturing the same forms an inner spline and an outer spline of a transmission synchronizer hub for vehicles by using different materials. The synchronizer hub may be manufactured by filling inner powders for forming the inner spline, molding the inner spline, filling outer powders for forming the outer spline, molding the outer spline, separating the double molded object obtained by integrally forming the inner spline and the outer spline from a mold, and performing sintering, post-processing, and high-frequency heating processes.
    Type: Application
    Filed: November 30, 2016
    Publication date: July 20, 2017
    Inventor: Na Ra Sin
  • Synchronizer hub for vehicles and method for manufacturing the same
    Patent number: 9528558
    Abstract: A synchronizer hub for vehicles and a method for manufacturing the same forms an inner spline and an outer spline of a transmission synchronizer hub for vehicles by using different materials. The synchronizer hub may be manufactured by filling inner powders for forming the inner spline, molding the inner spline, filling outer powders for forming the outer spline, molding the outer spline, separating the double molded object obtained by integrally forming the inner spline and the outer spline from a mold, and performing sintering, post-processing, and high-frequency heating processes.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 27, 2016
    Assignee: Hyundai Motor Company
    Inventor: Na Ra Sin
  • SYNCHRONIZER HUB FOR VEHICLES AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20150167815
    Abstract: A synchronizer hub for vehicles and a method for manufacturing the same forms an inner spline and an outer spline of a transmission synchronizer hub for vehicles by using different materials. The synchronizer hub may be manufactured by filling inner powders for forming the inner spline, molding the inner spline, filling outer powders for forming the outer spline, molding the outer spline, separating the double molded object obtained by integrally forming the inner spline and the outer spline from a mold, and performing sintering, post-processing, and high-frequency heating processes.
    Type: Application
    Filed: September 2, 2014
    Publication date: June 18, 2015
    Inventor: Na Ra Sin