Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5611831 | Diesel particulate filter apparatus | Hiroshi Matsuoka, Hideo Kawamura, Toshiaki Sakaguchi | 1997-03-18 |
| 5611832 | Diesel particulate filter apparatus | Shogo Suzuki, Hideo Kawamura | 1997-03-18 |