Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10327075 | Method for manufacturing a speaker diaphragm | Nanayo SUZUKI, Shinjiro Kato, Tomoyuki Suzuki | 2019-06-18 |
| 10291978 | Frame, speaker unit using the same, and headphone/earphone | — | 2019-05-14 |