Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5096013 | Reduced-noise propulsion system of air-cushion vehicle | Ryuichi Yoshida, Takashi Kawashima, Kunihiko Ishihara | 1992-03-17 |
| 5007495 | Propulsive air stream deflecting apparatus for air cushion vehicle | Ryuichi Yoshida, Koji Kadota | 1991-04-16 |
| 4924958 | Finger skirt for an air cushion vehicle | Ryuichi Yoshida, Tokio Ohnishi, Kanta Nihei, Shingo Takaeda | 1990-05-15 |