Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458484 | Catalytic converter for exhaust gas purification | Katunori Higashi | 1984-07-10 |
| 4196709 | After burning preventive system for an internal combustion engine | Fumio Okada, Hiraki Sawada | 1980-04-08 |