Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320999 | Exhaust gas cleaner and method of cleaning exhaust gas | Gyo Muramatsu, Akira Abe, Satoshi Sumiya, Nobuyuki MATSUMURA, Yoshikazu Takahashi | 1994-06-14 |
| 5290530 | Method of cleaning exhaust gas | Gyo Muramatsu, Akira Abe, Satoshi Sumiya, Nobuyuki MATSUMURA, Yoshikazu Takahashi | 1994-03-01 |
| 5213781 | Method of cleaning nitrogen oxide containing exhaust gas | Akira Abe, Satoshi Sumiya, Yoshikazu Takahashi, Gyo Muramatsu | 1993-05-25 |
| 5208202 | Exhaust gas cleaner and method of cleaning exhaust gas catalyst for cleaning exhaust gas | Gyo Muramatsu, Satoshi Sumiya, Akira Abe | 1993-05-04 |
| 5154901 | Method of cleaning an exhaust gas containing nitrogen oxides and fine carbon-containing particulates | Satoshi Sumiya, Takashi Ibusuki, Akira Obuchi, Hyogoro Aoyama, Akihiko Ohi +1 more | 1992-10-13 |
| 5141714 | Exhaust gas cleaner | Akira Obuchi, Hidenori Yoshiyama, Akihiko Ohi, Hyogoro Aoyama, Hideo Ohuchi +7 more | 1992-08-25 |
| 5108977 | Catalyst for cleaning exhaust gas | Satoshi Sumiya, Takashi Ibusuki, Akira Obuchi, Hyogoro Aoyama, Akiniko Ohi +1 more | 1992-04-28 |