Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688290 | Electric rail car door structure | Moo Sun Kim, Jai Sung Hong, Jae Ho Lee, Dong Uk Jang, Jung Tai Kim +1 more | 2017-06-27 |
| 5208842 | Precision digitally-controlled variable attenuation circuit | Kenneth L. Atwood, Hyun-Su Kim | 1993-05-04 |