Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4214558 | Fuel control method and system with a circuit for operating valve in effective working range | Tetsuji Nishioka, Makoto Anzai, Akio Hosaka | 1980-07-29 |
| 4208990 | Electronic closed loop air-fuel ratio control system | — | 1980-06-24 |
| 4186691 | Delayed response disabling circuit for closed loop controlled internal combustion engines | Sadao Takase | 1980-02-05 |
| 4183335 | Exhaust gas sensor operating temperature detection for fuel mixture control system | Akio Hosaka | 1980-01-15 |