Kubota Corporation is a Japanese multinational corporation based in Osaka. It was established in 1890. The corporation produces many products including tractors and other agricultural machinery, construction equipment, engines, vending machines, pipe, valves, cast metal, pumps, and equipment for water purification, sewage treatment and air conditioning. Kubota engines are in both diesel and gasoline or spark ignition forms, ranging from the tiny 0.276-liter engine to 6.1-liter engine, in both air-cooled and-liquid cooled designs, naturally-aspirated and forced induction. Cylinder configurations are from single cylinder to inline six cylinders, with single cylinder to four-cylinder being the most common. Those engines are widely used in agricultural equipment, construction equipment, tractors, and marine propulsion. The corporation is listed on the first section of Tokyo Stock Exchange and is a constituent of the TOPIX 100 and Nikkei 225. One of its notable contributions was to the construction of the Solar Ark. Kubota is also known for designing 3D graphics chips in the 1990s. Wikipedia