Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778467 | Underwater sounding apparatus | Koji Tokuda | 2004-08-17 |
| 6711953 | Method of and apparatus for controlling beams produced by a cylindrical transducer | Tatsuo Hayashi, Norio Matsuhiro | 2004-03-30 |