Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5595581 | Exhaust gas filter and apparatus for treating exhaust gases | Yoshiyuki Kasai, Yoshiro Ono | 1997-01-21 |
| 5592925 | Exhaust gas recirculation device for internal combustion engine | Minoru Machida, Toshio Yamada, Yoshiyuki Kasai | 1997-01-14 |