Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372526 | Drive bearing lubricating device for water injection propulsion vessel | Ryoichi Nakase | 1994-12-13 |
| 5366397 | Water jet propulsion unit | Noboru Suganuma, Ryoichi Nakase | 1994-11-22 |