Patents by Inventor Heung Son Lee

Heung Son Lee 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).

  • Magnetostrictive transducer and apparatus and method for monitoring structural health using the same
    Patent number: 8305074
    Abstract: A magnetostrictive transducer that generates a large shear horizontal (SH) wave useful for non-destructive testing of a plate member, and method and apparatus for structural health monitoring by using the magnetostrictive transducer. The magnetostrictive transducer includes: a magnetostrictive patch array comprising a plurality of magnetostrictive patches that have different radii of curvature, and have the same center of curvature when arranged on a plate member and form an overall fan-shape; a static magnetic field forming unit comprising two magnets that are respectively installed on both sides of the magnetostrictive patch so that a magnetic field is formed in parallel to an arc direction of the magnetostrictive patch; and a dynamic magnetic field forming unit comprising a wound coil comprising a plurality of curved portions.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: November 6, 2012
    Assignee: SNU R&DB Foundation
    Inventors: Ju Seung Lee, Min Kyung Lee, Heung Son Lee, Yoon Young Kim
  • MAGNETOSTRICTIVE TRANSDUCER AND APPARATUS AND METHOD FOR MONITORING STRUCTURAL HEALTH USING THE SAME
    Publication number: 20100321009
    Abstract: A magnetostrictive transducer that generates a large shear horizontal (SH) wave useful for non-destructive testing of a plate member, and method and apparatus for structural health monitoring by using the magnetostrictive transducer. The magnetostrictive transducer includes: a magnetostrictive patch array comprising a plurality of magnetostrictive patches that have different radii of curvature, and have the same center of curvature when arranged on a plate member and form an overall fan-shape; a static magnetic field forming unit comprising two magnets that are respectively installed on both sides of the magnetostrictive patch so that a magnetic field is formed in parallel to an arc direction of the magnetostrictive patch; and a dynamic magnetic field forming unit comprising a wound coil comprising a plurality of curved portions.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 23, 2010
    Applicant: SNU R&DB FOUNDATION
    Inventors: Ju Seung Lee, Min Kyung Lee, Heung Son Lee, Yoon Young Kim