Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833117 | Exhaust emission control catalyst element, catalyst structure, production method thereof, exhaust emission control apparatus and exhaust emission control method using the apparatus | Yasuyoshi Kato, Yoshinori Nagai, Kouichi Yokoyama, Naomi Yoshida, Eiji Miyamoto +1 more | 2004-12-21 |