Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12351884 | High-strength ultra-thick steel plate having superb impact toughness at low-temperatures, and method for manufacturing same | Tae-Il So | 2025-07-08 |
| 12305249 | High-strength structural steel having excellent cold bendability, and manufacturing method therefor | Jae-Young Cho, Il-Cheol Yi | 2025-05-20 |
| 12264387 | Steel plate having excellent heat affected zone toughness and method for manufacturing thereof | Tae-Il So | 2025-04-01 |
| 12221680 | Cryogenic austenitic high-manganese steel having excellent corrosion resistance, and manufacturing method therefor | Un-Hae Lee, Dong-Ho Lee, Sung Kyu Kim | 2025-02-11 |
| 11634800 | High-strength austenite-based high-manganese steel material and manufacturing method for same | Un-Hae Lee, Tae-Kyo Han, Sung Kyu Kim, Yong Jin Kim | 2023-04-25 |
| 11624101 | Steel for pressure vessel having excellent surface quality and impact toughness, and method for manufacturing same | Tae-Il So, Dae-Woo Kim | 2023-04-11 |
| 11591677 | High-strength structural steel material having excellent fatigue crack propagation inhibitory characteristics and manufacturing method therefor | Il-Cheol Yi, Jae-Young Cho | 2023-02-28 |
| 11584970 | High manganese steel for low temperature applications having excellent surface quality and a manufacturing method thereof | Yu-Mi Ha, Young-Deok Jung, Un-Hae Lee, Yong Jin Kim, Sung Kyu Kim +1 more | 2023-02-21 |
| 11572600 | Structural steel having excellent brittle crack propagation resistance, and manufacturing method therefor | Jae-Young Cho, Il-Cheol Yi | 2023-02-07 |
| 11566308 | Austenitic steel material having excellent abrasion resistance and toughness and manufacturing method the same | Yong Jin Kim, Hong-Yeol Oh, Hong-Ju Lee, Yoen-Jung Park, Young-Deok Jung | 2023-01-31 |
| 11149326 | High-strength and high-manganese steel having excellent low-temperature toughness and manufacturing method therefor | Il-Cheol Yi, Jae-Yong Chae, Jae-Young Cho, Hong-Yeol Oh, Tae-Il So | 2021-10-19 |
| 8560007 | Apparatus and method for supporting different types of universal integrated circuit cards | Yongmun Seon | 2013-10-15 |