Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4194472 | Exhaust gas recirculation system of a multi-cylinder internal combustion engine | Toshio Tanahashi | 1980-03-25 |
| 4192265 | Combustion promoting device of a multi-cylinder engine | Toshio Tanahashi | 1980-03-11 |