Patents by Inventor Se-Don Choo

Se-Don Choo 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-strength cold rolled steel sheet having excellent ductility, hot-dip galvanized steel sheet and method for manufacturing same
    Patent number: 10519526
    Abstract: The present invention relates to: a high-strength steel sheet used for construction materials and transportation means such as vehicles and trains and, more specifically, to a high-strength cold rolled steel sheet having excellent ductility, a hot-dip galvanized steel sheet, and a method for manufacturing the same.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: December 31, 2019
    Assignee: POSCO
    Inventors: Kyoo-Young Lee, Jai-Hyun Kwak, Joo-Hyun Ryu, Dong-Seoug Sin, Se-Don Choo
  • HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY, HOT-DIP GALVANIZED STEEL SHEET AND METHOD FOR MANUFACTURING SAME
    Publication number: 20170051378
    Abstract: The present invention relates to: a high-strength steel sheet used for construction materials and transportation means such as vehicles and trains and, more specifically, to a high-strength cold rolled steel sheet having excellent ductility, a hot-dip galvanized steel sheet, and a method for manufacturing the same.
    Type: Application
    Filed: August 1, 2015
    Publication date: February 23, 2017
    Inventors: Kyoo-Young LEE, Jai-Hyun KWAK, Joo-Hyun RYU, Dong-Seoug SIN, Se-Don Choo