Issued Patents 2004
Showing 1–3 of 3 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, Takashi Michimoto +1 more | 2004-12-21 |
| 6759565 | Method for decomposing chlorine-containing organic compound contained in exhaust gas and catalyst for use in the method | Yasuyoshi Kato | 2004-07-06 |
| 6710013 | Exhaust emission control catalyst structure | Yasuyoshi Kato, Kouichi Yokoyama, Eiji Miyamoto | 2004-03-23 |