Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881959 | Exhaust emission purifier for diesel engines | Yoichiro Kono, Yasuaki Kumagai, Hiroshi Ogita | 1989-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881959 | Exhaust emission purifier for diesel engines | Yoichiro Kono, Yasuaki Kumagai, Hiroshi Ogita | 1989-11-21 |