Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692486 | Air-fuel ratio sensor deterioration-detecting system for internal combustion engines | Kojiro Tsutsumi, Yuji Fujiki, Toshitaka Hachiro, Fumio Hara, Sachito Fujimoto | 1997-12-02 |
| 5676119 | Air-fuel ratio control system for internal combustion engines | Kojiro Tsutsumi, Shuichi Hosoi, Katsuhiko Suzuki, Sachito Fujimoto | 1997-10-14 |