Issued Patents 2004
Showing 1–2 of 2 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, Naomi Yoshida, Takashi Michimoto, Eiji Miyamoto +1 more | 2004-12-21 |
| 6710013 | Exhaust emission control catalyst structure | Yasuyoshi Kato, Eiji Miyamoto, Masatoshi Fujisawa | 2004-03-23 |