Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831838 | Double air-fuel ratio sensor system carrying out learning control operation | Toshinari Nagai, Takatoshi Masui, Toshiyasu Katsuno | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831838 | Double air-fuel ratio sensor system carrying out learning control operation | Toshinari Nagai, Takatoshi Masui, Toshiyasu Katsuno | 1989-05-23 |