Inventor
JEONG HONG-CHUL
KR9 patents
Patents
9 patentsUS7105066B2Sep 12, 2006
Steel plate having superior toughness in weld heat-affected zone and welded structure made therefrom
POSCO87 citations95
US6686061B2Feb 3, 2004
Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom
POSCO14 citations81
US6966955B2Nov 22, 2005
Steel plate having TiN+ZrN precipitates for welded structures, method for manufacturing same and welded structure made therefrom
POSCO8 citations71
US6946038B2Sep 20, 2005
Steel plate having Tin+MnS precipitates for welded structures, method for manufacturing same and welded structure
POSCO7 citations70
US10065272B2Sep 4, 2018
Super high-strength flux cored arc welded joint having excellent impact toughness, and welding wire for manufacturing same
POSCO2 citations69
US12390892B2Aug 19, 2025
Welding wires for obtaining giga-grade welds, welded structures manufacturing using same, and welding method thereof
POSCO0 citations58
US7396423B2Jul 8, 2008
Method for manufacturing steel plate having superior toughness in weld heat-affected zone
POSCO1 citations49
US10370736B2Aug 6, 2019
Ultrahigh-strength steel for welding structure with excellent toughness in welding heat-affected zones thereof, and method for manufacturing same
POSCO0 citations39
US10266929B2Apr 23, 2019
Ultrahigh-strength gas metal arc welded joint having excellent impact toughness, and solid wire for producing same
POSCO0 citations34