Professor Hiroyasu Ejiri graduated from University of Tokyo (Physics course), earning his B.S. in 1958 and Ph.D. in 1963.
He has held extensive academic appointments at research institutes and/or physics departments of leading universities, including University of Tokyo, University of Washington, University of California, University of Copenhagen, Osaka University, International Christian University, and Czech Technical University.
   He has played leading roles in nuclear physics research, serving as the professor and/or the supervisor at these universities, the chairperson of the Nuclear Physics Committee in Japan,  the director of Research Center for Nuclear Physics Osaka Univ., and the director General of Yamada Science Foundation.