Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071113 | Catalytic combustion element and method of causing catalytic combustion | Osamu Tsubouchi, Susumu Yamaguchi | 2000-06-06 |
| 4885218 | Battery exhaust gas plug filter and process for manufacturing the same | Ichiro Tajima | 1989-12-05 |