Japan's Finance Minister Naoto Kan (C) greets fellow lawmakers in the lower house of parliament after being voted in as prime minister as outgoing Prime Minister Yukio Hatoyama (R) looks on in Tokyo June 4, 2010. Kan, a fiscal conservative once best known for battling bureaucrats, was chosen on Friday to be Japan's next premier as the ruling party strives to repair its fortunes ahead of a national election. REUTERS/Issei Kato (JAPAN - Tags: POLITICS ELECTIONS)