Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7168303 | Diagnostic apparatus for evaporative emission control system | Daisuke Takahashi, Yasushi Nakoji | 2007-01-30 |
| 6092019 | Method of judging monitoring condition for diagnosis of engine | — | 2000-07-18 |
| 5337556 | Detecting device and method for engine catalyst deterioration | — | 1994-08-16 |