Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702276 | Watercraft catalytic exhaust system | Ryoichi Nakase, Shigeyuki Ozawa, Takehisa Suzuki | 1997-12-30 |
| 5660571 | Muffling device for outboard propulsion machine | Yoshikazu Nakayasu | 1997-08-26 |
| 5632660 | Watercraft catalytic exhaust system | Ryoichi Nakase, Shigeyuki Ozawa | 1997-05-27 |
| 5595516 | Outboard motor exhaust system | Naoto Matsumoto | 1997-01-21 |