Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920750 | Heat exchanging system for power generation | Naotsugu Iishiki, Shiro Mishima | 1990-05-01 |
| 4876856 | Heat exchanging system | Naotsugu Iishiki, Shiro Mishima | 1989-10-31 |