Patents by Inventor Yoon-Uk HEO

Yoon-Uk HEO 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).

  • High specific strength steel sheet and method for manufacturing same
    Patent number: 10626476
    Abstract: A high specific strength steel sheet and a method for manufacturing same are disclosed. The high specific strength steel sheet, which is an aspect of the present invention, is characterized in that an Fe—Al-based intermetallic compound having an average particle diameter of 20 ?m or less is homogeneously dispersed in an austenite matrix, the volume fraction of the Fe—Al-based intermetallic compound is 1 to 50%, and the volume fraction of ?-carbide ((Fe,Mn)3AlC) which is a perovskite carbide and has an L12 structure is 15% or less.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 21, 2020
    Assignees: POSCO, Postech Academy-Industry Foundation
    Inventors: Han-Soo Kim, Nack-Joon Kim, Yoon-Uk Heo, Sang-Heon Kim, Jae-Sang Lee, Jin-Mo Koo
  • HIGH SPECIFIC STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME
    Publication number: 20160319388
    Abstract: A high specific strength steel sheet and a method for manufacturing same are disclosed. The high specific strength steel sheet, which is an aspect of the present invention, is characterized in that an Fe—Al-based intermetallic compound having an average particle diameter of 20 ?m or less is homogeneously dispersed in an austenite matrix, the volume fraction of the Fe—Al-based intermetallic compound is 1 to 50%, and the volume fraction of ?-carbide ((Fe,Mn)3AlC) which is a perovskite carbide and has an L12 structure is 15% or less.
    Type: Application
    Filed: December 26, 2013
    Publication date: November 3, 2016
    Inventors: Han-Soo KIM, Nack-Joon KIM, Yoon-Uk HEO, Sang-Heon KIM, Jae-Sang LEE, Jin-Mo KOO