Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9838799 | Electroacoustic converter | Yutaka Doshida, Hiroshi Hamada | 2017-12-05 |
| 9756427 | Electroacoustic converter and electronic device | Yutaka Doshida, Hiroshi Hamada | 2017-09-05 |
| 9686615 | Electroacoustic converter and electronic device | Yutaka Doshida, Hiroshi Hamada | 2017-06-20 |