Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428691 | Cold-rolled steel sheet having excellent bendability and hole expandability and method for manufacturing same | Yeon-Sang AHN | 2025-09-30 |
| 11827950 | Method of manufacturing high-strength steel sheet having excellent processability | Yeon-Sang AHN, Kang-Hyun CHOI, Eul-Yong CHOI | 2023-11-28 |
| 11519051 | High-strength steel sheet having excellent processability and method for manufacturing same | Yeon-Sang AHN, Kang-Hyun CHOI, Eul-Yong CHOI | 2022-12-06 |
| 11345985 | High-strength steel sheet with excellent crashworthiness characteristics and formability and method of manufacturing the same | Yeon-Sang AHN, Kang-Hyun CHOI | 2022-05-31 |
| 11345984 | High-strength steel sheet with excellent crashworthiness characteristics and formability and method of manufacturing the same | Yeon-Sang AHN, Kang-Hyun CHOI | 2022-05-31 |
| 10941467 | Cold-rolled steel sheet with excellent formability, galvanized steel sheet, and manufacturing method thereof | Yeon-Sang AHN, Joo-Hyun RYU, Kyoo-Young Lee, Won Pyo Hong | 2021-03-09 |
| 10941468 | High tensile strength steel having excellent bendability and stretch-flangeability and manufacturing method thereof | Yeon-Sang AHN, Ki Hyun PARK | 2021-03-09 |