Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5930995 | Exhaust gas purification device for a compression-ignition combustion engine | Yoshimasa Watanabe, Yasushi Araki, Kiyoshi Kobashi | 1999-08-03 |
| 5851249 | Particulate trap for a diesel engine | Kiyoshi Kobashi, Yoshimasa Watanabe, Yasushi Araki, Youichi Nagai, Syunsuke Ban | 1998-12-22 |