Mr. Takenaka is a professor of economics at Ryukoku University. He has held positions in the Bank of Tokyo-Mitsubishi UFJ, including chief representative at the Washington DC Office, chief manager and senior economist of Research Office, and chief manager of Currency Option Group, Funds and Foreign Exchange Division. He also served as a chief economist at the Institute for International Monetary Affairs (IIMA) until 2009. He has been a member of the U.S. Conference of Business Economists and a board member of the National Economist Club (NEC) in Washington D.C.. He also writes frequently for major Japanese business and economic magazines, including the Mainichi Newspaper, Nikkei Business Online, the Diamond Weekly, and the International Finance Journal by The Institute of Foreign Exchange & Trade Research.

Mr. Takenaka graduated from Tokyo University.