Prof. Michitaka Ohtaki has completed his PhD at The University of Tokyo, Japan. He is a professor of inorganic materials chemistry in Kyushu University, Japan. He has published more than 100 peer-reviewed scientific papers and 22 books, and was invited to more than 40 international conferences to deliver keynote and invited lectures. He has been serving as an executive board member of the Thermoelectrics Society of Japan (TSJ), and as an associate editor of the Journal of the Ceramic Society of Japan