Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11790879 | Impact detection device and percussion instrument | Kazuo Masaki, Emi Tanabe | 2023-10-17 |
KH
Keizo Harada
Overall (2023): #369,550 of 537,848Top 70%
1
Patents 2023