Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10681468 | Speaker diaphragm and coil coupling arrangement, and method | Koji Okazaki | 2020-06-09 |
MT
Masahiro Tobise
Overall (2020): #353,891 of 565,922Top 65%
1
Patents 2020