Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9246375 | Vibrator for generating horizontal vibration | Seong-Kwan Oh, Ki Hwan Hong, In Jae Lee, Hyun-Ki Yang | 2016-01-26 |
| 8237315 | Step motor | Seong-Kwan Oh, Hyun-Ki Yang, Ki Hwan Hong | 2012-08-07 |
| 8232698 | Step motor | Seong-Kwan Oh, Hyun-Ki Yang, Ki Hwan Hong | 2012-07-31 |