Patents by Inventor Yeong Joo Do

Yeong Joo Do 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).

  • Method for controlling surface quality of ultra-low carbon steel slab
    Patent number: 9751126
    Abstract: The present invention provides a method for controlling the surface quality of an ultra-low carbon steel slab, the method comprising the steps of: measuring the phosphorus (P) concentration, sulfur (S) concentration and superheating degree of a molten steel which is introduced into a mould in a continuous casting process for producing the ultra-low carbon steel slab, the width of the mould, and the casting speed of the slab; and calculating the depth of a hook which is formed when the molten steel is solidified into the slab, based on the measured width of the mould, the measured phosphorus (P) concentration, sulfur (S) concentration and superheating degree of the molten steel, and the measured casting speed of the slab.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: September 5, 2017
    Assignee: Hyundai Steel Company
    Inventors: Hae Young Seo, Suk Hyun Yoo, Hyo Joong Kwon, Yeong Joo Do, Kae Young Lee, Ju Tae Choi
  • METHOD FOR CONTROLLING SURFACE QUALTIY OF ULTRA-LOW CARBON STEEL SLAB
    Publication number: 20160008876
    Abstract: The present invention provides a method for controlling the surface quality of an ultra-low carbon steel slab, the method comprising the steps of: measuring the phosphorus (P) concentration, sulfur (S) concentration and superheating degree of a molten steel which is introduced into a mould in a continuous casting process for producing the ultra-low carbon steel slab, the width of the mould, and the casting speed of the slab; and calculating the depth of a hook which is formed when the molten steel is solidified into the slab, based on the measured width of the mould, the measured phosphorus (P) concentration, sulfur (S) concentration and superheating degree of the molten steel, and the measured casting speed of the slab.
    Type: Application
    Filed: December 26, 2013
    Publication date: January 14, 2016
    Inventors: Hae Young Seo, Suk Hyun Yoo, Hyo Joong Kwon, Yeong Joo Do, Kae Young Lee, Ju Tae Choi