Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328668 | Secondary air supply system for internal combustion engines | — | 1982-05-11 |
| 4263783 | Exhaust gas purification system for an internal combustion engine | Shojiro Nagano, Naohiro Naganuma, Mikiji Ito | 1981-04-28 |
| 4245472 | Secondary air supply control apparatus for internal combustion engine | — | 1981-01-20 |
| 4189915 | Secondary air supply system for an internal combustion engine | — | 1980-02-26 |