抄録
The history of Former Ikegai Iron Works are reviewed especially on the productive works of Diesel engines. Engineer dream of the president Shotaro-Ikegai of the company, was production of mother machines for the domestic country. He was a so skill full and so excellent wise engineer that he had started to produce reciprocal engine energized with fuel materials beside of works of mother machine-shop. The first realization of production of diesel engine in Japan was taking place in his iron works, modifying commercial engine inported in Japan from Deutschrand. By such industrial activities, he and his followers had established the Ikegai konzern around 1940in Japan, in which the Ikegai automobile company was established. After the second world war, the Ikegai works had been fallen in severe economical situations. Those historical problems with developing technology of Diesel-engines are reviewed briefly.
