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2012/02/20	Participated nano tech 2012 International Nanotechnology Exhibition & Conference at Tokyo Big Sight Feb.15-17.
2011/11/14	Participated SAMPE JAPAN 2011 Tokyo Big Sight Nov.9-11
2011/05/30	Participated SAMPE2011 Long Beach, CA USA May 24-26
2011/05/23	Participated N PLUS Find a New Value of Materials and Technologies Tokyo Big Sight May 18-20
2011.02.07	Participated nano tech 2011 International Nanotechnology Exhibition & Conference (held in Tokyo on Feb 16-18).