Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568467 | Helical type heat exchanger having intermediate heating medium | Kuniaki Ara | 2003-05-27 |
| 6561265 | Heat exchanger having intermediate heating medium | Hitoshi Hayashida, Kuniaki Ara | 2003-05-13 |