Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10750273 | Bass reflex port and bass reflex type speaker | Katsuya Uchida, Akira Miki | 2020-08-18 |
HO
Hirofumi Onitsuka
Overall (2020): #448,837 of 565,922Top 80%
1
Patents 2020