Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7204302 | Exhaust gas heat exchanger | Akihiro Maeda | 2007-04-17 |
| 7152671 | Exhaust gas heat exchanger | Akihiro Maeda | 2006-12-26 |
| 6820682 | Heat exchanger | Takayuki Hayashi, Takaki Okochi, Akihiro Maeda | 2004-11-23 |
| 6247523 | Exhaust gas heat exchanger | Takaki Okochi, Katsunori Uchimura, Shigeki Daidou | 2001-06-19 |