He received B.S. in information science, M.E, and Ph.D in engineering from University of Tsukuba under the supervision of Prof. Hiroyuki Kitagawa in 2009, 2011 and 2015 respectively. From 2011 to 2015, he was a researcher at NTT labs, and he joined Center for Computational Sciences at University of Tsukuba in Nov. 2015. His current main research interests include database systems, data engineering, data mining, and graph data management.