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 |
| 6806601 | Brushless motor and disk drive including the same | — | 2004-10-19 |
| 6710013 | Exhaust emission control catalyst structure | Yasuyoshi Kato, Kouichi Yokoyama, Masatoshi Fujisawa | 2004-03-23 |