Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11432072 | Speaker diaphragm and production method thereof | Hiroshi Nakashima | 2022-08-30 |
| 11330362 | Acoustic device | Akihiko Nozaki, Masao Noro | 2022-05-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11432072 | Speaker diaphragm and production method thereof | Hiroshi Nakashima | 2022-08-30 |
| 11330362 | Acoustic device | Akihiko Nozaki, Masao Noro | 2022-05-10 |