Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409973 | Exhaust gas purification device for an engine | Toshifumi Takaoka, Kouhei Igarashi, Takaaki Itou | 2002-06-25 |
| 6345496 | Method and device for purifying exhaust gas of an engine | Naohide Fuwa, Hiroshi Tanaka, Takaaki Itou, Naoto Suzuki, Takehisa Yaegashi +2 more | 2002-02-12 |