Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12180571 | High-strength cold rolled steel sheet and galvannealed steel sheet having excellent burring property, and manufacturing method therefor | Jai-Hyun Kwak | 2024-12-31 |
| 12168810 | High-strength cold-rolled steel sheet having excellent bending workability and manufacturing method therefor | Young-Roc IM | 2024-12-17 |
| 11091818 | 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 | Jai-Hyun Kwak, Dong-Seoug Sin | 2021-08-17 |
| 10604820 | Method of continuously annealing a strip | Jai-Hyun Kwak, Kyoo-Young Lee, Joo-Hyun RYU, Man-Young Park | 2020-03-31 |
| 10358691 | Apparatus for continuous annealing of strip and method for continuous annealing of same | Jai-Hyun Kwak, Kyoo-Young Lee, Joo-Hyun RYU, Man-Young Park | 2019-07-23 |
| 9382597 | Steel sheet for enamel having no surface defects and method of manufacturing the same | Woo-Yeol Cha, Su Beom Park, Woo Sung Kim | 2016-07-05 |