Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365733 | Exhaust gas purification system for an internal combustion engine | Toshiaki Tanaka, Tokuta Inoue | 1994-11-22 |
| 5365734 | NOx purification apparatus for an internal combustion engine | — | 1994-11-22 |
| 5315824 | Cold HC adsorption and removal apparatus for an internal combustion engine | — | 1994-05-31 |
| 5296196 | Semiconductor hydrocarbon sensor | — | 1994-03-22 |