YS

Youn-Kyun Song

PC Pohang Iron & Steel Co.: 1 patents #55 of 233Top 25%
📍 Andong-si, KR: #124 of 237 inventorsTop 55%
Overall (All Time): #3,544,381 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6387538 Surface-treated steel sheet for fuel tanks and method of fabricating same Jae Ryung Lee, Sang Geol No, Soo-Hyoun Cho, Sam-Kyu Chang 2002-05-14