Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154901 | Method of cleaning an exhaust gas containing nitrogen oxides and fine carbon-containing particulates | Kiyohide Yoshida, Satoshi Sumiya, Takashi Ibusuki, Akira Obuchi, Akihiko Ohi +1 more | 1992-10-13 |
| 5141714 | Exhaust gas cleaner | Akira Obuchi, Hidenori Yoshiyama, Akihiko Ohi, Hideo Ohuchi, Atsushi Ogata +7 more | 1992-08-25 |
| 5108977 | Catalyst for cleaning exhaust gas | Kiyohide Yoshida, Satoshi Sumiya, Takashi Ibusuki, Akira Obuchi, Akiniko Ohi +1 more | 1992-04-28 |