Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7093432 | Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine | Hiroshi Hanaoka, Osamu Kuroda, Ryouta Doi, Hidehiro Iizuka, Toshio Ogawa +6 more | 2006-08-22 |
| 6841511 | Internal combustion engine exhaust gas purification apparatus, exhaust gas purification process and exhaust gas purification catalyst | Masato Kaneeda, Kojiro Okude, Hidehiro Iizuka, Toshio Ogawa, Kousei Nagayama +4 more | 2005-01-11 |
| 6823659 | Moisture removal device and method thereof for internal combustion engine use exhaust gas cleaning device | Norihiro Shinotsuka, Osamu Kuroda, Yuichi Kitahara, Takeshi Inoue, Ryouta Doi +1 more | 2004-11-30 |
| 6630115 | Exhaust emission control process for internal combustion engines | Masato Kaneeda, Kojiro Okude, Hidehiro Iizuka, Toshio Ogawa, Kousei Nagayama +4 more | 2003-10-07 |
| 6397582 | Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine | Hiroshi Hanaoka, Osamu Kuroda, Ryouta Doi, Hidehiro Iizuka, Toshio Ogawa +6 more | 2002-06-04 |
| 6272848 | Exhaust gas cleaning apparatus and method for internal combustion engine | Kojiro Okude, Hidehiro Iizuka, Osamu Kuroda, Ryouta Doi, Toshio Ogawa +4 more | 2001-08-14 |
| 6161378 | Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas internal combustion engine | Hiroshi Hanaoka, Osamu Kuroda, Ryouta Doi, Hidehiro Iizuka, Toshio Ogawa +6 more | 2000-12-19 |
| 6045764 | Exhaust gas purifying method and catalyst used therefor | Hidehiro Iizuka, Osamu Kuroda, Toshio Ogawa, Hisao Yamashita, Shigeru Azuhata +7 more | 2000-04-04 |
| 5972828 | Method of manufacturing catalyst for cleaning exhaust gas released from internal combustion engine, and catalyst for the same | Ryouta Doi, Hidehiro Iizuka, Hiroshi Hanaoka, Toshio Ogawa, Osamu Kuroda +2 more | 1999-10-26 |