Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5134847 | Double air-fuel ratio sensor system in internal combustion engine | Takashi Ogawa | 1992-08-04 |
| 4708113 | Method of discriminating octane number of fuel for motor vehicle | Osamu Harada, Yuji Takeda, Toshio Suematsu, Katsushi Anzai | 1987-11-24 |