Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10681468 | Speaker diaphragm and coil coupling arrangement, and method | Masahiro Tobise | 2020-06-09 |
KO
Koji Okazaki
Overall (2020): #384,458 of 565,922Top 70%
1
Patents 2020