Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670444 | Exhaust gas cleaner and method for cleaning same | Kiyohide Yoshida, Akira Abe, Naoko Irite | 1997-09-23 |
| 5658542 | Exhaust gas cleaner and method for cleaning same | Kiyohide Yoshida, Akira Abe, Naoko Irite | 1997-08-19 |
| 5658543 | Exhaust gas cleaner and method for cleaning same | Kiyohide Yoshida, Akira Abe, Naoko Irite | 1997-08-19 |
| 5645804 | Method for cleaning exhaust gas containing nitrogen oxides | Satoshi Sumiya, Seiji Makino, Kiyohide Yoshida, Yoshikazu Takahashi, Masataka Furuyama +2 more | 1997-07-08 |