Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641123 | Expandable nozzle mechanism for a rocket engine | Kenji Kishimoto, Masaaki Yasui | 1997-06-24 |
| 4879874 | Liquid fuel rocket engine | Yukio Koyari, Eiji Sogame, Kanji Kishimoto | 1989-11-14 |