Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7267160 | Heat exchanger | Susumu Ichikawa, Masaki Saito, Tadamichi Aoyama | 2007-09-11 |
| 6730274 | Exhaust heat exchanger with catalyst | Takahiro Ideguchi, Hisao Hagiwara | 2004-05-04 |