Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477912 | Six-degrees-of-freedom parallel mechanism for micro-positioning work | Se Kyong Song | 2002-11-12 |
| 6393930 | Ball screw with inner ball circulation and linear actuator equipped with the ball screw | Se Kyong Song, Wan Soo Kim, Hyung Suck Cho | 2002-05-28 |