Associate Professor, Faculty of Science,
Toyama University (1978-1993).
Research fellow at Earth and Planetary Sciences,
MIT, (1979-1980).
Research fellow at CIRES,
University of Colorado, (1984-1985).
Professor of Geophysics, Faculty of Science,
Toyama University (1993-2002).
Professor of Geophysics, DPRI,
Kyoto University (2002-).
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