- 1999 - - 滋賀医科大学 学内講師
- 1997 - - 滋賀医科大学 助手
- 1991 - 1996 Osaka Women's and Children's Hospital Research Institute
- 1988 - 1991 Researcher,
- 1991 - Osaka University
- 1991 - Research Associate, Faculty of Medicine,
- Fujita-Gakuen Health University
- Institute for Comperhensive Medical Science,
- Division of Biomedical Polymer Science.
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