Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6176347 | Semi-active muffler for internal combustion engine | Seok-Tae Hyun | 2001-01-23 |
| 5762303 | Tilting angle adjusting device for use in a projector | — | 1998-06-09 |
| 5641957 | Inclination angle sensing apparatus for use in a projector | — | 1997-06-24 |
| 5631764 | Electrodisplacive actuator for use in an actuated mirror array | — | 1997-05-20 |