Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693877 | Evaluating method for NO.sub.x eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor | Minoru Ohsuga, Nobuo Kurihara | 1997-12-02 |
| 5666916 | Apparatus for and method of controlling internal combustion engine | Toshiharu Nogi, Yoshishige Oyama, Minoru Ohsuga, Takuya Shiraishi | 1997-09-16 |