Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9751152 | Preparation method for spiral laminate composite using compressive torsion | Hyoung Seop Kim, Kang-Hyun CHOI, Dong-Jun Lee | 2017-09-05 |
| 9447487 | Torsional extreme-plastic processing method of conic metal pipe | Hyoung Seop Kim, Ho Yong Um, Dong-Jun Lee, Seong Lee | 2016-09-20 |