Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672817 | Self-diagnostic apparatus of air-fuel ratio control system of internal combustion engine | Yasuo Sagisaka, Masaaki Nakayama, Yukihiro Yamashita, Hisashi Iida | 1997-09-30 |