Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319930 | Exhaust gas purifying device for an internal combustion engine | Motohiro Shinzawa, Shunichi Aoyama, Yoshiki Sekiya | 1994-06-14 |
| 5287698 | Exhaust gas purifying device for an internal combustion engine | Motohiro Shinzawa, Shunichi Aoyama, Yoshiki Sekiya | 1994-02-22 |