Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7131128 | Optical actuator | Seok-jung Kim, Chong-sam Chung, Hae-jung Suh, Sun-mo Kim, Jin Won Lee | 2006-10-31 |
| 5392759 | Diamond cutting tool for hard articles | — | 1995-02-28 |
| D342270 | Core drill for perforating stone | — | 1993-12-14 |