Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865883 | Sealing ring | Masatoshi Seki, Takeshi Hosoe, Yuichiro Tokunaga | 2020-12-15 |
| 10781924 | Sliding component | Takeshi Hosoe, Yuta Negishi, Yuichiro Tokunaga | 2020-09-22 |
| 10685635 | Sound tube having a cap, the cap thereof, and musical instrument including the sound tube | — | 2020-06-16 |
| 10655736 | Sliding component | Masatoshi Itadani, Kazumasa Sunagawa, Yuichiro Tokunaga, Takeshi Hosoe, Ryoma Yamakawa +5 more | 2020-05-19 |
| 10598286 | Slide component | Yuichiro Tokunaga, Wataru Kimura, Tetsuya Iguchi, Takeshi Hosoe, Hidetoshi Kasahara +4 more | 2020-03-24 |