As for birth of ヰセキトラクタ1959. They are the TC10 15 types which were called the "cherry tractor". Air cooled two cycle Diesel of the Victor automatic corporation was the latest and most powerful engine. 1964, TB15 which overcomes the weak point in the rotary job of TC type, following TB20 is sold in 40. The air cooled 4 cycle Diesel engine of Kawasaki aircraft industry make was stable summer through the winter. Being small size lightweight, it was superior in starting characteristic and travelling efficiency and rotary efficiency, attention focused on the aptitude where is high to the Japanese paddy field job. 1966, with the tractor efficiency test with the Akita prefecture Hachirogata, while the large-sized tractor foreign make one after another keeps sinking to the ill-drained paddy field, height of the efficiency which overwhelms other things was proven. Following, the Kyoto university agriculture department tractor workshop driving TB20, executing Mt. Fuji ascent in 42. The circumstances which supply success beautifully were televised in entire country, the efficiency where the same machine is high was acknowledged in society.