Dept. Physics University of Tokyo 1958, Graduate School of University of Tokyo PhD 1963, INS of University of Tokyo 1963, University od Washington 1967, University of Californiia Visiting Proffesor 1975, Osaka Univessity Professor 1976, Director of the Research Center for Nuclear Physics 1993-1999, Chair person of Nuclear Physics Committee 1986-1992, International Christian University Proffessor 2003, University of Washington Visiting Prof. 1999, International Institute for Advanced Studies 2001 Research Fellow, Czech Technical University Prague Visiting Professoe 2007- 2022, Yamada Science Foundation President 2017-2019. Shimazu Prize for neutrino studies 1992. Nuclear physics on nucleat stractures and nuclear reactions, Hyper nuclear physics, Neutrino physics, Double beta decays, Beta decays, Muon captures, Charge exchange reactions, Neutrino nuclear responses, nuclear matrix elements, Symmetry of particle physics, Dark matter, Astro nuclear physics. Electron and Gamma ray spectroscopy in nuclear physics Oxford University Press 1989.