Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600998 | Catalyst deteriorating state detecting apparatus | Yoshihiro Majima, Noriaki Ikemoto | 2003-07-29 |
| 6560959 | Exhaust gas purification apparatus of internal combustion engine | Hiroyuki Katsuta, Yoshihiro Majima | 2003-05-13 |
| 6539707 | Exhaust emission control system for internal combustion engine | Noriaki Ikemoto, Hisashi Iida, Kouichi Shimizu | 2003-04-01 |