Patents by Inventor Jong Uk RYU

Jong Uk 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).

  • Non-oriented electrical steel sheet and manufacturing method therefor
    Patent number: 11319619
    Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention comprises Si: 2.0 to 3.5%, Al: 0.3 to 3.5%, Mn: 0.2 to 4.5%, Zn: 0.0005 to 0.02% in wt % and Fe and inevitable impurities as a balance amount.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 3, 2022
    Assignee: POSCO
    Inventors: Jae-Hoon Kim, Jong Uk Ryu, Hun Ju Lee, Yoon Sung Kim
  • Non-oriented electrical steel sheet and manufacturing method therefor
    Patent number: 11299792
    Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention includes Ti at 0.0030 wt % or less (excluding 0 wt %), Nb at 0.0035 wt % or less (excluding 0 wt %), V at 0.0040 wt % or less (excluding 0 wt %), B at 0.0003 wt % to 0.0020 wt %, and the remaining portion including Fe and other inevitably added impurities, wherein a value of ([Ti]+0.8[Nb]+0.5[V])/(10*[B]) may be 0.17 to 7.8.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 12, 2022
    Assignee: POSCO
    Inventors: Jae-Hoon Kim, Jong Uk Ryu, Seung Il Kim, Sin Young Jung, Su Yong Sin, Sang Woo Lee
  • NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR
    Publication number: 20200095659
    Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention comprises Si: 2.0 to 3.5%, Al: 0.3 to 3.5%, Mn: 0.2 to 4.5%, Zn: 0.0005 to 0.02% in wt % and Fe and inevitable impurities as a balance amount.
    Type: Application
    Filed: December 19, 2017
    Publication date: March 26, 2020
    Inventors: Jae-Hoon Kim, Jong Uk Ryu, Hun Ju Lee, Yoon Sung Kim
  • NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR
    Publication number: 20170362677
    Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention includes Ti at 0.0030 wt % or less (excluding 0 wt %), Nb at 0.0035 wt % or less (excluding 0 wt %), V at 0.0040 wt % or less (excluding 0 wt %), B at 0.0003 wt % to 0.0020 wt %, and the remaining portion including Fe and other inevitably added impurities, wherein a value of ([Ti]+0.8[Nb]+0.5[V])/(10*[B]) may be 0.17 to 7.8.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 21, 2017
    Inventors: Jae-Hong KIM, Jong Uk RYU, Seung Il KIM, Sin Young JUNG, Su Yong SIN, Sang Woo LEE