Patents by Inventor Gi Hak Yim

Gi Hak Yim 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).

  • HOT STAMPING COMPONENT AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20230104619
    Abstract: A method of manufacturing a hot stamping includes: inserting a blank having a plating layer formed on at least one surface of a base material into a heating furnace having a plurality of sections having different temperature increase rate ranges; and multi-stage heating the blank gradually while passing through the plurality of sections. The plurality of sections include: a first heating section having a first average temperature increase rate change rate; a second heating section having a second average temperature increase rate change rate different from the first average temperature increase rate change rate; and a third heating section having a third average temperature increase rate change rate different from the first average temperature increase rate change rate and the second average temperature increase rate change rate. The third average temperature increase rate change rate includes a section in which a positive value is changed to a negative value.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 6, 2023
    Inventors: Seung Chae Yoon, Je Youl Kong, Sung Min Kim, Je Woo Soo Kim, Hye Jin Kim, Jae Myoung Park, Byung Gil Yoo, Wan Yook, Gi Hak Yim, Seung Pill Jung, Hyun Yeong Jung
  • Hot-stamped part and manufacturing method therefor
    Patent number: 11446901
    Abstract: A hot-stamped part according to an embodiment of the present invention comprises, as a base layer, a steel comprising: 0.28-0.38 wt % of carbon (C); 0.1-0.4 wt % of silicon (Si); 1.2-2.0 wt % of manganese (Mn); from greater than 0 to 0.020 wt % of phosphorus (P); from greater than 0 to 0.003 wt % of sulfur (S); 0.1-0.5 wt % of chromium (Cr); 0.0015-0.0040 wt % of boron (B); 0.025-0.05 wt % of titanium (Ti); and the remainder of iron (Fe) and inevitable impurities, wherein the microstructure of the base layer is full martensite.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 20, 2022
    Assignee: Hyundai Steel Company
    Inventors: Je Youl Kong, Ji Young Kim, Young Chul Park, Hye Jin Kim, Byung Gil Yoo, Wan Yook, Seung Chae Yoon, Gi Hak Yim, Jeong Hwan Jang
  • HOT-STAMPED PART AND MANUFACTURING METHOD THEREFOR
    Publication number: 20220168996
    Abstract: A hot-stamped part according to an embodiment of the present invention comprises, as a base layer, a steel comprising: 0.28-0.38 wt % of carbon (C); 0.1-0.4 wt % of silicon (Si); 1.2-2.0 wt % of manganese (Mn); from greater than 0 to 0.020 wt % of phosphorus (P); from greater than 0 to 0.003 wt % of sulfur (S); 0.1-0.5 wt % of chromium (Cr); 0.0015-0.0040 wt % of boron (B); 0.025-0.05 wt % of titanium (Ti); and the remainder of iron (Fe) and inevitable impurities, wherein the microstructure of the base layer is full martensite.
    Type: Application
    Filed: December 26, 2019
    Publication date: June 2, 2022
    Inventors: Je Youl Kong, Ji Young Kim, Young Chul Park, Hye Jin Kim, Byung Gil Yoo, Wan Yook, Seung Chae Yoon, Gi Hak Yim, Jeong Hwan Jang