Yoshichika Otani received the B.S., M.S., and Ph.D. degrees from Keio University, Japan, in 1984, 1986, and 1989. He was a research fellow at the Physics Department of Trinity College Dublin, the University of Dublin, Ireland (1989–1991), and a researcher at the Laboratoire Louis Néel, CNRS, France (1991–1992). He was an assistant professor at the Department of Physics, Keio University (1992–1995), and an associate professor at the Department of Materials Science, Tohoku University (1995–2002). From 2001 to 2004, he led the Quantum Nano-Scale Magnetics Research Team at the RIKEN Frontier Research System (FRS) as a team leader. In 2004 he became a professor at the Institute for Solid State Physics (ISSP), the University of Tokyo. Since 2004 he has additionally been the leader of the Quantum NanoScale Magnetism Research Team at the RIKEN Center for Emergent Matter Science (CEMS). Prof. Otani has published over 250 technical articles in peer-reviewed journals, including book chapters and review articles, and has given more than 100 invited and plenary presentations at international conferences. He has been coordinating the Nano Spin Conversion Science project, supported by the Japanese Ministry of Education, Culture, Sports, Science, and Technology since 2014 to elucidate the interconversion mechanisms among phonons, photons, magnons, and electrons. He has been a committee member of the Commission on Magnetism (C9) of the International Union of Pure and Applied Physics since 2011 and will become vice chair in 2018.