Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505217 | Rigid marine sail | Yoichi Endo, Kazuo Nakanishi, Hideki Namura, Terukazu Doi, Katsunori Kusumoto +3 more | 1985-03-19 |
| 4418632 | Method for operating a rigid marine sail | Kazuyuki Shimizu, Takashi Watari, Katsunori Kusumoto | 1983-12-06 |