Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820413 | State determining apparatus for exhaust gas purifier | Masaki Ueno, Yoshihisa Iwaki, Shiro Takakura, Yasuyuki Miyahara | 2004-11-23 |
| 6799420 | Method of evaluating deteriorated state of hydrocarbon adsorbent | Masaki Ueno, Tetsuo Endo, Hideharu Yamazaki, Shiro Takakura, Kei Machida +1 more | 2004-10-05 |
| 6792749 | Exhaust gas purifying apparatus for internal combustion engine | Masaki Ueno, Shiro Takakura, Yasuyuki Miyahara | 2004-09-21 |
| 6769247 | Exhaust gas valve device in internal combustion engine | Norihito Watanabe, Yasuyuki Miyahara, Masao Komine, Kenichi Ohmori, Kenji Abe +1 more | 2004-08-03 |
| 6763655 | Catalyst state detector for exhaust gas purifying catalyst | Masaki Ueno, Shusuke Akazaki, Masahiro Sato, Hideharu Yamazaki, Tetsuo Endo +2 more | 2004-07-20 |
| 6729122 | Exhaust gas purification system of internal combustion engines | Norihito Watanabe, Kenji Abe, Yasuyuki Miyahara, Masao Komine, Kenichi Ohmori +1 more | 2004-05-04 |