Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733735 | Method and device for temperature reduction of exhaust gas by making use of thermal water | Masayuki Kumada | 2004-05-11 |
| 6712343 | Method and device for temperature reduction of exhaust gas by making use of thermal water | Masayuki Kumada | 2004-03-30 |