Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11453922 | Ultra-high-strength steel sheet having excellent hole expandability and yield ratio, and method of manufacturing the same | Joo-Hyun RYU, Sea-Woong Lee, Won-Hwi Lee | 2022-09-27 |
| 11299793 | Steel sheet having excellent resistance to liquid metal embrittlement cracks and method for manufacturing the same | Sea-Woong Lee, Joo-Hyun RYU, Ki-Cheol Kang | 2022-04-12 |