- 2019 - 現在 Toho University Faculty of Science Professor
- 2019 - 現在 SIAIS (Shanghai Institute for Advanced Immunochemical Studies), ShanghaiTech Professor
- 2018 - 2019 Laboratory for Developmental Neurobiology, Center for Brain Science, RIKEN Senior Team Leader
- 2009 - 2018 Laboratory for Developmental Neurobiology, Brain Science Institute, RIKEN Senior Team Leader
- 2006 - 2011 Solution Oriented Research for Science and Technology (calcium oscillation project) Japan Science and Technology Agency (JST) Research Director
- 2008 - 2009 RIKEN
- 1997 - 2009 Laboratory for Developmental Neurobiology, Brain Science Institute, RIKEN Team Leader
- 1992 - 2007 Department of Molecular Neurobiology, The Institute of Medical Science, The University of Tokyo Professor
- 2001 - 2005 The International Cooperative Research Project (calcium oscillation project) Japan Science and Technology Agency (JST) Research Director
- 1995 - 2000 Mikoshiba Calciosignal Net Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Corporation (JST) Project Leader
- 1992 - 1997 Molecular Neurobiology Laboratory, The Institute of Physical and Chemical Research (RIKEN), Tsukuba Life Science Center Chief Scientist
- 1991 - 1992 Department of Molecular Neurobiology, The Institute of Medical Science, The University of Tokyo Professor
- 1985 - 1992 Division of Regulation of Macromolecular Function, Institute for Protein Research, Osaka University Professor
- 1986 - 1991 Division of Behavior and Neurobiology, National Institute for Basic Biology Professor
- 1982 - 1985 Department of Physiology, Keio University School of Medicine Associate Professor
- 1974 - 1982 Department of Physiology, Keio University School of Medicine Assistant Professor
- 1976 - 1977 Pasteur Institute, Paris, France (c/o Dr. Jean-Pierre Changeux) Research Associate
- 1973 - 1974 Department of Physiology, Keio University School of Medicine Instructor