Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224461 | Self-diagnosing apparatus and method for fuel supply control system applicable to internal combustion engine | — | 1993-07-06 |
| 5157920 | Method of and an apparatus for controlling the air-fuel ratio of an internal combustion engine | — | 1992-10-27 |
| 4926826 | Electric air-fuel ratio control apparatus for use in internal combustion engine | Toshibumi Itoh | 1990-05-22 |