Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11074329 | Authentication device and authentication method | Koji Okabe, Hitoshi Yamamoto | 2021-07-27 |
| 11039236 | Ear pad and earphone using the same | Kohei Osugi, Kouji OOSUGI | 2021-06-15 |