Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10850557 | Wheel for utility vehicle | Nobuyuki Nishiguchi | 2020-12-01 |
| 6508187 | Watercraft | Kiyoaki Maeda, Yoshinori Tsumiyama, Takehiro Nakashima, Kanji Kiyohara, Haruyoshi Maruyama +5 more | 2003-01-21 |
| 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, William Peter Engle, Jr. +1 more | 2000-09-05 |