Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10418542 | Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic | Takayuki Goto, Keiichi Hatano, Sumiaki Kishimoto, Yutaka Doshida | 2019-09-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10418542 | Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic | Takayuki Goto, Keiichi Hatano, Sumiaki Kishimoto, Yutaka Doshida | 2019-09-17 |