Issued Patents 2005
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6976356 | Exhaust gas purifier for use in internal combustion engine | Kojiro Okada, Osamu Nakayama, Kazuhito Kawashima | 2005-12-20 |
| 6968677 | Exhaust emission control apparatus for internal combustion engine | — | 2005-11-29 |
| 6938613 | Internal combustion engine | Kazuhito Kawashima, Kazuhide Iwasa | 2005-09-06 |
| 6920752 | Exhaust emission control device of internal-combustion engine | — | 2005-07-26 |
| 6892528 | Catalyst deterioration detecting apparatus | Kojiro Okada, Kinichi Iwachido, Osamu Nakayama | 2005-05-17 |
| 6892527 | Catalyst deterioration suppressing apparatus and method | Katsunori Ueda, Masaaki Kaneko, Kojiro Okada, Ishido Masanori | 2005-05-17 |
| 6840035 | Exhaust emission control system for multiple cylinder internal combustion engine | — | 2005-01-11 |