Wei Gao received his Bachelor of Precision Instrumentation from Shanghai Jiao Tong University, China, in 1986, followed by MSc and Ph. D from Tohoku University, Japan, in 1991 and 1994, respectively. He is currently a professor and the director of Research Center for Precision Nanosystems, Department of Nanomechanics of Tohoku University. His research interests include precision metrology and micro/nano-metrology. He is a fellow of the International Academy for Production Engineering (CIRP), the International Society for Nanomanufacturing (ISNM), and The Japan Society for Precision Engineering (JSPE). He serves as the Vice-Chairman of The Scientific Technical Committee Precision Engineering and Metrology of CIRP. He is also a Vice President of JSPE in 2015. He works or has worked in the editorial board of several international journals including Precision Engineering, IEEE Transactions on Instrumentation & Measurement, International Journal for Precision Engineering and Manufacturing.He has published more than 150 journal papers and applied more than 50 patents (more than 20 issued). He is the author of the book “Precision Nanometrology” (Springer) and has won five Paper Awards from JSPE.