Kotaro Kohno was born in 1969. He received the Ph.D. degree in astronomy [on the observational study of dense intersteller medium in the central regions of nearby active galaxies using nobeyama millimeter array (NMA)] from the University of Tokyo, Tokyo, Japan, in 1998. Until 2001, he was involved with the development of 230-GHz SIS receivers for NMA along with the operation of NMA and observational studies of molecules in galaxies near and far. He has also been involved with the construction and operation of the Atacama Submillimeter Telescope Experiment (ASTE) including the development of SIS receivers for ASTE. In 2001, he joined the Institute of Astronomy (IoA), Graduate School of Science, University of Tokyo, and he has been a Professor in the Radio Astronomy Group of IoA, Univeristy of Tokyo, since 2009. He is currently leading and involved with various research programs using atacama large millimeter/submillimeter array. His recent research interests include next-generation telescopes, superconducting devices and their application for ground-based millimeter and submillimeter astrophysics to understand the formation and evolution of galaxies, and supermassive black holes in the universe.