Inventor
KWAK JAI HYUN
KR16 patents
⚠️ This page may combine multiple inventors who share the name “KWAK JAI HYUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POSCO
10 patentsUS10358691B2Jul 23, 2019
Apparatus for continuous annealing of strip and method for continuous annealing of same
POSCO2 citations70
US11753693B2Sep 12, 2023
High-strength cold rolled steel sheet having high hole expansion ratio, highstrength hot-dip galvanized steel sheet, and manufacturing methods therefor
POSCO0 citations60
US12180571B2Dec 31, 2024
High-strength cold rolled steel sheet and galvannealed steel sheet having excellent burring property, and manufacturing method therefor
POSCO0 citations58
US11091818B2Aug 17, 2021
High strength cold-rolled steel sheet and hot-dip galvanized steel sheet having excellent hole expansion, ductility and surface treatment properties, and method for manufacturing same
POSCO0 citations55
US12194560B2Jan 14, 2025
Method for preventing spot welding crack of galvanized steel plate
POSCO0 citations50
US9856542B2Jan 2, 2018
Ferritic lightweight high-strength steel sheet having excellent stiffness and ductility, and method of manufacturing the same
POSCO0 citations50
US9598753B2Mar 21, 2017
High strength thin steel sheet for the superior press formability and surface quality and galvanized steel sheet and method for manufacturing the same
POSCO1 citations50
US10604820B2Mar 31, 2020
Method of continuously annealing a strip
POSCO0 citations49
US10273556B2Apr 30, 2019
Lightweight steel sheet having excellent strength and ductility and method for manufacturing same
POSCO0 citations46
US10519526B2Dec 31, 2019
High-strength cold rolled steel sheet having excellent ductility, hot-dip galvanized steel sheet and method for manufacturing same
POSCO0 citations44