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, Kouichi Yokoyama, Naomi Yoshida, Takashi Michimoto, Eiji Miyamoto +1 more | 2004-12-21 |
| 6820736 | Conveying apparatus | Kazuo Itoh | 2004-11-23 |
| 6721037 | Device for exposure of a peripheral area of a wafer | Kazumoto Tochihara | 2004-04-13 |