Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10857440 | Artificial shuttlecock feather and shuttlecock | Yusuke Matsushima, Takumi Sakaguchi | 2020-12-08 |
| 10786718 | Artificial shuttlecock feather and shuttlecock | Yusuke Matsushima, Takumi Sakaguchi | 2020-09-29 |