Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834051 | Oxygen sensor and an air-fuel ratio control apparatus of an internal combustion engine using the same | Shigekazu Yamauchi, Masaru Mikita | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834051 | Oxygen sensor and an air-fuel ratio control apparatus of an internal combustion engine using the same | Shigekazu Yamauchi, Masaru Mikita | 1989-05-30 |