Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848303 | Method of controlling operation of internal combustion engines | Sachito Fujimoto | 1989-07-18 |
| 4840156 | Intake air quality control method for internal combustion engines at termination of fuel cut operation | Akihiro Yamato | 1989-06-20 |