Yoshitaka Shindo is the Minister of State for Decentralization Reform for Japan.
Keiji Furuya is the Minister of State for Disaster Management for Japan.
Taro Aso is the Minister of State for Financial Services for Japan.
Masako Mori is the Minister of State for Gender Equality for Japan.
Tomomi Inada is the Minister of State for Regulatory Reform for Japan.
Masako Mori is the Minister of State for Measures for Declining Birthrate for Japan.
Nobuteru Ishihara is the Minister of State for Nuclear Emergency Preparedness for Japan.
Toshimitsu Motegi is the Minister of State for the Nuclear Damage Compensation Facilitation for Japan.
There are several heads of state in Japan. These include the emperor of Japan, Akihito (although this is a more symbolic position), the Prime Minister, Shinzō Abe, and the Deputy Prime Minister, Tarō Asō.
His Imperial Majesty Emperor Akihito is the Chief of State of Japan.
The Prime Minister heads the Government but the Emperor is head of state but has no real power.
No, Tomomi Iwakura was a statesman during the late 1800's. He was also the chamberlain for the Emperor of Japan. Certain papers say he was Prime Minister but everyone refers to him as the 'minister of the right' which is the Junior Minister of the State, if he was prime minister it was only for a short while.