Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487381 | Ultrahigh-strength spring steel | Sung Chul Cha, Min Woo Kang, Seung Hyun Hong | 2019-11-26 |
| 9982706 | Method of manufacturing light rotor shaft for eco-friendly vehicles | Bong Lae Jo | 2018-05-29 |