Yasuo Iwata

Ignition timing control device for internal combustion engine

Stroke identifying unit of a four-stroke engine

Engine speed calculation apparatus

FUEL-HEATING DEVICE.

Engine revolution rate computation arrangement which is not influenced by pulsed rotation of engine at low speeds

Engine speed calculating apparatus

Ignition timing control apparatus of on-vehicle internal combustion engine

Ignition timing control device for IC engine

Zündzeitpunktsteuerapparate des Verbrennungsmotors eines Kraftfahrzeuges Zündzeitpunktsteuerapparate the internal combustion engine of a motor vehicle

Vorrichtung zur Berechnung der Drehzahl einer Brennkraftmaschine Means for calculating the speed of an internal combustion engine