4. Fumio Kishida
Fumio Kishida is a Japanese politician and the current foreign minister of Japan. He is politically affiliated with LDP and the member of the Japanese house of representative since 1993.
Before his entry into politics he worked in the long term credit bank of Japan. He served the lower house for seven times and represents the Hiroshima 1 in the Junichiro Koizumi cabinet.
He is the law graduated from the Waseda University. Fumio Kishida estimated net worth is 40 million dollars and he is ranked at fourth place in the list of top 10 richest politician of Japan.