TOKYO, Feb 12 (Reuters) - Japan's Nikkei share average gained 1.7 percent on Tuesday as exporters rose on a weaker yen after a U.S. Treasury official said the Washington supports Japan's efforts to end deflation and re-invigorate growth.
The index rose to 11,346.72, moving closer to a 33-month high of 11,498.42 struck last Wednesday.
The broader Topix gained 1.5 percent to 971.36.