- 1995 - 1999 Kyoto University Graduate School of Engineering
- 1995 - 1999 Assistant Professor, Graduate School of Materials Science, Kyoto University
- 1999 - - 東北大学金属材料研究所 教授
- 1999 - - Professor, Institute for Materials Research, Tohoku University
- 1993 - 1995 Kyoto University Faculty of Engineering
- 1993 - 1995 Assistant Professor, Faculty of Engineering, Kyoto University
- 1992 - 1993 東北大学素材工学研究所 講師
- 1992 - 1993 Lecturer, Institute for Advanced Materials Processing, Tohoku University
- 1991 - 1992 東北大学選鉱製錬研究所 講師
- 1991 - 1992 Lecturer, Institute for Mineral Dressing and Metallurgy, Tohoku University
- 1984 - 1991 東北大学選鉱製錬研究所 助手
- 1984 - 1991 Research Associate, Institute for Mineral Dressing and Metallurgy, Tohoku University
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