Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6630115 | Exhaust emission control process for internal combustion engines | Masato Kaneeda, Kojiro Okude, Toshio Ogawa, Kousei Nagayama, Hisao Yamashita +4 more | 2003-10-07 |
| 6596247 | Method for purifying exhaust gas from internal combustion engines | Ryouta Doi, Hiroshi Hanaoka, Toshio Ogawa, Osamu Kuroda, Hisao Yamashita +3 more | 2003-07-22 |
| 6517784 | Exhaust gas purifying apparatus for an internal combustion engine | Osamu Kuroda, Toshio Ogawa, Akira Kato, Hiroshi Miyadera, Yuichi Kitahara +1 more | 2003-02-11 |