Inventor
KO KYOUNG-PIL
KR7 patents
Patents
7 patentsUS11028322B2Jun 8, 2021
Composition for washing pickled steel plate, method for washing pickled steel plate by using same, and steel plate obtained thereby
POSCO2 citations66
US11781207B2Oct 10, 2023
Galvanized steel sheet having excellent hardness and galling resistance
POSCO0 citations60
US11649542B2May 16, 2023
Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance
POSCO0 citations60
US11208716B2Dec 28, 2021
Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance
POSCO0 citations60
US10988845B2Apr 27, 2021
Plated steel sheet having multilayer structure and manufacturing method therefor
POSCO0 citations60
US11332667B2May 17, 2022
Composition for washing pickled steel plate, method for washing pickled steel plate by using same, and steel plate obtained thereby
POSCO0 citations56
US9683294B2Jun 20, 2017
Conversion coating composition, surface treated steel sheet, and method for manufacturing the same
POSCO0 citations50