HC

Hae-Chang Choi

PC Posco Co.: 2 patents #1 of 31Top 4%
📍 Heunghae-eup, KR: #1 of 13 inventorsTop 8%
Overall (2005): #54,885 of 245,428Top 25%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6966955 Steel plate having TiN+ZrN precipitates for welded structures, method for manufacturing same and welded structure made therefrom Hong-Chul Jeong 2005-11-22
6946038 Steel plate having Tin+MnS precipitates for welded structures, method for manufacturing same and welded structure Hong-Chul Jeong, Wung-Yong Choo 2005-09-20