Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8234853 | Catalyst degradation determining method | Toshinari Nagai, Yasuhiro Oi, Noriyasu Adachi, Koji Ide, Daisuke Kobayashi +3 more | 2012-08-07 |
| 7165389 | Catalyst degradation determining method | Toshinari Nagai, Yosuhiro Oi, Noriyasu Adachi, Koji Ide, Daisuke Kobayashi +3 more | 2007-01-23 |
| 7117665 | Catalyst degradation determining method | Toshinari Nagai, Yasuhiro Oi, Noriyasu Adachi, Koji Ide, Daisuke Kobayashi +3 more | 2006-10-10 |
| 6915628 | Catalyst degradation determining method | Toshinari Nagai, Yasuhiro Oi, Noriyasu Adachi, Koji Ide, Daisuke Kobayashi +3 more | 2005-07-12 |
| 6666199 | Control device of internal combustion engine and method of judging failure of sensor | Naoto Kato, Toshinari Nagai, Akihiro Katayama | 2003-12-23 |
| 6655350 | Idle speed control system and control method for internal combustion engine | — | 2003-12-02 |
| 6546719 | Air-fuel ratio control apparatus of internal combustion engine | Toshinari Nagai, Akihiro Katayama, Naoto Kato | 2003-04-15 |
| 6502389 | Air-fuel ratio control system for internal combustion engine and control method therof | Akihiro Katayama, Toshinari Nagai, Naoto Kato, Shinji Kojima, Naoki Baba | 2003-01-07 |