Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591776 | Semi-submergence type hydrofoil craft | — | 2003-07-15 |
| 6555779 | Underwater processing device and underwater processing method | Takeshi Obana, Hisanori Okamura, Takeshi Tsukamoto, Takahiko Kato, Masato Koshiishi | 2003-04-29 |