May 9, 2012 Takahiro Saito (Department of Precision Engineering, the University of Tokyo)
September 6, 2011 Yoshihito Tanaka (RIKEN SPring-8 Center)
May 11, 2011 Koichi Hayashi (Institute for Materials Research, Tohoku University)
April 26, 2011 Hidekazu Mimura (Department of Precision Engineering, the University of Tokyo)
April 19, 2011 Akihito Oikawa (Cyclotron and Radioisotope Center, Tohoku University)
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September 8, 2010 Marcus C. Newton (Advanced Technology Institute, University of Surrey, UK)