Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10043499 | Percussion instrument, drumhead for percussion instrument, mold for manufacture of drumhead, and manufacturing method of drumhead | Kiyoshi Yoshino | 2018-08-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10043499 | Percussion instrument, drumhead for percussion instrument, mold for manufacture of drumhead, and manufacturing method of drumhead | Kiyoshi Yoshino | 2018-08-07 |