Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7403631 | Electro-acoustic transducer | Hiromi Yamada, Yoshio Imahori, Yasunori Tsukuda | 2008-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7403631 | Electro-acoustic transducer | Hiromi Yamada, Yoshio Imahori, Yasunori Tsukuda | 2008-07-22 |