Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363647 | Dual-sensor type air fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same | Hirofumi Ohuchi | 1994-11-15 |
| 5341300 | Trouble diagnosis device and method for exhaust gas return control device | — | 1994-08-23 |
| 5327873 | Malfunction sensing apparatus for a fuel vapor control system | Hirofumi Ohuchi | 1994-07-12 |