Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8371628 | Length-variable shock absorbing apparatus for vehicle | Hyo Min Jin | 2013-02-12 |
| 8348038 | Disk friction clutch apparatus using self-energizing effect | Hyung Jin Sung, Jinsung Kim | 2013-01-08 |