Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10457834 | Chrome free coating composition having excellent blackening resistance and corrosion resistance, and surface-treated steel sheet | Young-Jin Kwak, Tae-Yeob Kim, Dong-Yun Kim, Yong-Jin Cho | 2019-10-29 |
| 9376576 | Resin composition for a surface treatment, and steel sheet coated with same | Yong-Gyun Jung, Gab Yong Kim, Woon-Jong Kim, Jae-Dong Cho, Jong-Sang Kim +2 more | 2016-06-28 |
| 9296903 | Film formation composition for preventing blackening of steel sheet, and steel sheet having film formed by composition | Young-Jin Kwak, Dong-Yun Kim, Woo-Sung Jung, Kyung-Hoon Nam, Dong-Yoeul Lee +8 more | 2016-03-29 |