Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792751 | Exhaust gas purification device and method for diesel engine | Hajime Kokusyo, Yasuhisa Kitahara, Hiroaki Kaneko | 2004-09-21 |
| 6729125 | Exhaust gas purifying system | Katsuo Suga, Yasunari Hanaki, Maki Shimada, Hiroshi Akama, Hironori Wakamatsu | 2004-05-04 |