Yoshitaka Nakanishi received his Dr. Eng. degree in tribology from the Graduate School of Mechanical Engineering, Kyushu University, Japan, in 1998. Currently, he is a full professor at the Graduate School of Science and Technology of Kumamoto University, Japan, and vice-chairman of the Kumamoto University Innovative Collaboration Organization, Japan. His current research interests include soft-tribology research and its applications in bioengineering and sustainable technology. Prof. Nakanishi has authored or coauthored 3 books and more than 100 scientific papers as well as organized many conferences and workshops in the field of bioengineering.