Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670443 | Exhaust gas cleaner and method for cleaning exhaust gas | Naoko Irite, Kiyohide Yoshida | 1997-09-23 |
| 5670444 | Exhaust gas cleaner and method for cleaning same | Kiyohide Yoshida, Gyo Muramatsu, Naoko Irite | 1997-09-23 |
| 5658542 | Exhaust gas cleaner and method for cleaning same | Kiyohide Yoshida, Gyo Muramatsu, Naoko Irite | 1997-08-19 |
| 5658543 | Exhaust gas cleaner and method for cleaning same | Kiyohide Yoshida, Gyo Muramatsu, Naoko Irite | 1997-08-19 |
| 5656249 | Exhaust gas cleaner and method for removing nitrogen oxides | Kiyohide Yoshida, Tatsuo Miyadera, Naoko Irite | 1997-08-12 |
| 5646562 | Phase synchronization circuit, one-shot pulse generating circuit and signal processing system | — | 1997-07-08 |
| 5645804 | Method for cleaning exhaust gas containing nitrogen oxides | Satoshi Sumiya, Seiji Makino, Kiyohide Yoshida, Yoshikazu Takahashi, Masataka Furuyama +2 more | 1997-07-08 |