Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570299 | Piezoelectric electroacoustic transducer and manufacturing method of the same | Tetsuo Takeshima, Kiyotaka Tajima, Yuichi Sakai | 2003-05-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570299 | Piezoelectric electroacoustic transducer and manufacturing method of the same | Tetsuo Takeshima, Kiyotaka Tajima, Yuichi Sakai | 2003-05-27 |