Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9583079 | Silencer for wind instrument | Keizo Tatsumi | 2017-02-28 |
YS
Yuichiro Suenaga
Overall (2017): #180,897 of 506,227Top 40%
1
Patents 2017