Patents by Inventor Sol Ji RYU

Sol Ji RYU 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).

  • Cage for rolling bearing
    Patent number: 9121450
    Abstract: A cage for a rolling bearing is coupled to a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements rolling between the inner ring and the outer ring to keep intervals of the plurality of rolling elements, wherein the plurality of rolling elements include bodies coupled along a circumference thereof at predetermined intervals, wherein each of the bodies includes a first piece and a second piece which are attachable to each other and detachable from each other. A first coupler and a second coupler configured to be capable of being coupled to each other are respectively formed at the first piece and the second piece, and the first piece and the second piece are primarily coupled by means of a coupling force of the first coupler and the second coupler.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: September 1, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Yong Bok Lee, Chang Ho Kim, Bok Seong Choe, Sol Ji Ryu
  • CAGE FOR ROLLING BEARING
    Publication number: 20140376850
    Abstract: A cage for a rolling bearing is coupled to a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements rolling between the inner ring and the outer ring to keep intervals of the plurality of rolling elements, wherein the plurality of rolling elements include bodies coupled along a circumference thereof at predetermined intervals, wherein each of the bodies includes a first piece and a second piece which are attachable to each other and detachable from each other. A first coupler and a second coupler configured to be capable of being coupled to each other are respectively formed at the first piece and the second piece, and the first piece and the second piece are primarily coupled by means of a coupling force of the first coupler and the second coupler.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Inventors: Yong Bok LEE, Chang Ho KIM, Bok Seong CHOE, Sol Ji RYU