Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678402 | Air-fuel ratio control system for internal combustion engines and exhaust system temperature-estimating device applicable thereto | Hiroshi Kitagawa, Tetsuya Kaneko, Akira Kato, Toshiaki Hirota, Masami Watanabe +1 more | 1997-10-21 |
| 5655363 | Air-fuel ratio control system for internal combustion engines | Hiroshi Ito, Tetsuya Kaneko, Yoichi Iwata, Tetsu Teshirogi | 1997-08-12 |
| 5600949 | Exhaust gas-purifying system for internal combustion engines | Hiroaki Kato, Yuichi Shimasaki, Akihisa Saito, Takashi Komatsuda, Toshikazu Oketani +3 more | 1997-02-11 |