Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841940 | Air-fuel ratio control device of an internal combustion engine | Takaaki Itou | 1989-06-27 |
| 4838229 | Air-fuel ratio control device of an internal combustion engine | Takaaki Itou | 1989-06-13 |
| 4834050 | Air-fuel ratio control device of an internal combustion engine | Takaaki Itou | 1989-05-30 |
| 4809667 | Apparatus for controlling amount of fuel-vapor purged from canister to intake air system | Takaaki Itou | 1989-03-07 |