| 2017 Prof. Reimund Gerhard (University of Potsdam, Germany)2019 Prof. Takeo Furukawa (Tokyo University of Science, Japan) |
| 2017 Prof. Reimund Gerhard (University of Potsdam, Germany) |
| 2011 Prof. Jan van Turnhout (TU Delft, The Netherlands) |
| 2011 Prof. Jan van Turnhout (TU Delft, The Netherlands) |
| 2008 Prof. Jacques Lewiner (ESPCI Paris, France) |
| 2005 Prof. Gerhard M. Sessler (TU Darmstadt, Germany) |