Kakuei Tanaka was a Japanese politician who was the 64th and 65th prime minister of Japan from 1972 to 1974. Although being the most influential member of the ruling Liberal Democratic Party during the period 1960-1980, he subsequently became the central figure in a major political scandal, the Lockheed bribery scandals of 1976, which led to the collapse of his political faction. However, besides these scandals, he was known as the Shadow Shogun with the construction industry but never occupied the construction minister position, and his political-economic direction is called the construction state.
He did several jobs related to construction before joined in the military in 1939. After leaving the army in 1941 due to pneumonia, Kakuei Tanaka returned to Tokyo, where he took over Sakamoto Civil Engineering firm and renamed it Tanaka Civil Engineering and Construction Industries in 1942.
In 1942, Kakuei Tanaka got married to Sakamoto Hana with two children, a son named Masanori Tanaka in 1942 (died 1948) and a daughter named Makiko Tanaka in 1944.