Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041547 | Shifting manipulation-assisting device and hub-embedded transmission having the same | Hyuk Yoo, Tae Jin Jung, Moon-Soo Yoo | 2021-06-22 |
| 9676448 | Hub-embedded multi-stage transmission | Hyuk Yoo, Tae Jin Jung | 2017-06-13 |
| 9182024 | Multi-stage transmission | Hyuk Yoo, Tae Jin Jung | 2015-11-10 |
| 8727930 | Forced speed changing apparatus of bicycle | Hyuk Yoo, Tae Jin Jung | 2014-05-20 |
| 8241160 | Transmission for use in a motor and a pedal-powered vehicle and transmission method thereof | Tae Jin Jung, Hyuk Yoo | 2012-08-14 |