Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5634713 | Pneumatic material transporter and mixer | — | 1997-06-03 |
| 5222839 | Method and apparatus for underwater reclamation | Kazunori Ishida, Yasutaka Nakai, Motoyoshi Ishii, Taisuke Kato | 1993-06-29 |