Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4427418 | Device for collecting particulates in exhaust gases | Hiroshi Ohkawa | 1984-01-24 |
| 4404795 | Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine | Kiyohiko Oishi, Yoshihiro Suzuki, Kiyoshi Kobashi, Shinichi Matsumoto, Takashi Yoshida | 1983-09-20 |