Patents by Inventor Yeon-Chae JEONG

Yeon-Chae JEONG 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 GALVANIZED STEEL SHEET HAVING EXCELLENT ELECTRICAL RESISTANCE SPOT WELDABILITY, AND METHOD FOR PRODUCING SAME
    Publication number: 20220042155
    Abstract: Provided is a galvanized steel sheet having excellent spot weldability; and a method for producing same. The galvanized steel sheet includes a base steel sheet and a zinc-based plating layer formed on the base steel sheet, wherein the surface layer of the base steel sheet may have a decarburization rate of at least 30% as represented by equation 1. [Equation 1]: Decarburization rate (%) of surface layer=(1?average carbon concentration in surface layer/bulk carbon concentration)*100, where the surface layer refers to a region extending to a depth of 35 ?m from the surface of the base steel sheet.
    Type: Application
    Filed: December 18, 2019
    Publication date: February 10, 2022
    Inventors: Ki-Cheol KANG, Sang-Ho UHM, Chang-Woon JEE, Yeon-Chae JEONG, Kwang-Tai MIN