Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10789926 | Supporting apparatus for kick pad | Yuichi Sato, Takashi Koizumi | 2020-09-29 |
| 10770041 | Kick pad | Takashi Koizumi, Yuichi Sato | 2020-09-08 |
| 10672370 | Rotation stopper for cymbal pad | Takashi Koizumi | 2020-06-02 |