Patents by Inventor Hoi Hun Kim

Hoi Hun Kim 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).

  • Publication number: 20220356542
    Abstract: Disclosed is a ferritic stainless steel with improved high temperature creep resistance. The disclosed ferritic stainless steel comprises by weight %: 0.005 to 0.03% of C, 0.005 to 0.03% of N, 0.05 to 0.9% of Si, 0.05 to 0.9% of Mn, 14.0 to 19.0% of Cr, 0.1 to 0.6% of Ti, 0.1 to 0.6% of Nb, 0.1 to 0.6% of Cu, 0.01 to 0.04% of P, 0.01% or less (excluding 0) of S, and the balance of iron (Fe) and inevitable impurities, and is characterized by satisfying Expressions (1) and (2) below. 0.5?Nb/Cu?3??Expression (1) 20?[2Nb+Ti]/[C+N]??Expression (2) wherein Nb, Cu, Ti, C, and N denote contents (wt %) of each element.
    Type: Application
    Filed: February 6, 2020
    Publication date: November 10, 2022
    Applicant: POSCO
    Inventors: Il Chan Jung, Hoi Hun Kim, Han Jin Ryu