Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6192823 | Personal watercraft | Yoshinori Tsumiyama, Kenichi Nakagawa, Tomohiro Kanazawa, Kiyoaki Maeda, Kunihiko Kamio +2 more | 2001-02-27 |
| 6112686 | Storage structure for personal watercraft | Yoshinori Tsumiyama, Kenichi Nakagawa, Kiyoaki Maeda, Kunihiko Kamio, Joe Heim +1 more | 2000-09-05 |