4Invited Speaker"" 2008 ESSTA, International Committee, Sathiabama University, Chennai, India | 2008-11
3Invited Speaker, Colloquium on Biologically Inspired Robotics"Biomimetic electro-active paper actuator: Its principle and applications" Seoul National University | 2008-08
2Invited Paper"Feasibility of E-Paper with cellulose" SPIE 15th International Symposium on Smart Materials, Structures and NDE: Nanosensors and Microsensors for Bio-Systems, San Diego, CA, USA | 2008-03
1Invited Speaker"Flying magic paper made with cellulose electro-active paper: concept and its possibility" The 4th International Symposium on Innovative Aerial/Space Flyer Systems, The University of Tokyo, Japan | 2008-01