Fact Sheet: U.S.-Japan Cooperation on Clean Energy Technologies [November 11, 2009] [open pdf - 36KB]
"President Obama and Prime Minister Hatoyama met on November 13, 2009 in Tokyo. The two leaders affirmed the intent of the United States and Japan, as the two leading global investors in energy research and development, to expand already strong cooperative activities in technology research and development to provide solutions to the challenges of global energy security and climate change." This press release includes the "initial areas for joint activities to strengthen their cooperation."
White House: http://www.whitehouse.gov