Mitsubishi group was founded in the early 1870s by Yataro Iwasaki as a shipping company. It grew quickly and diversified its business. Before the broke out of WWII, it had already became one of the biggest firms in Japan. Many warships, tanks and military planes, e.g. the Zero-fighter, were the work of the group. After the war, it produced 3-wheel mini trucks to meet the demand for the rebuilding Japanese society. When the countryâ