Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10477295 | Earphone | Akira Tamadera, Masanori Ito, Naoki Imagawa | 2019-11-12 |
| 10419845 | Headphones and speaker unit | Shun Muramoto, Akira Tamadera | 2019-09-17 |
| 10362380 | Headphone | Masanori Ito | 2019-07-23 |