- 2023/04 - 現在 Osaka University University Library Director of the Administrative Department
- 2020/04 - 2023/03 Tohoku University University Library
- 2018/04 - 2020/03 Tohoku University Library General Affairs Division Head
- 2014/04 - 2018/03 National Institute of Informatics Library Liaison Cooperation Office, Cyber Science Infrastructure Development Department Director
- 2012/04 - 2014/03 Hitotsubashi University Library Affairs Division Manager
- 2009/04 - 2012/03 Tohoku University Library Information Service Division Head
- 2007/04 - 2009/03 National Institute of Informatics Infrastructure Planning Division, Cyber Science Infrastructure Development Department Assistant Director
- 2006/04 - 2007/03 National Institute of Informatics Planning and Coordination Division, Development and Operations Department Assistant Director
- 2005/04 - 2006/03 National Institute of Informatics Infrastructure Planning Division, Cyber Science Infrastructure Development Department Specialist
- 2004/04 - 2005/03 National Institute of Informatics Planning and Coordination Division, Development and Operations Department Chief
- 2000/04 - 2004/03 National Institute of Informatics Network Software Technology Section, Application Division, Development and Operations Department Chief
- 1998/04 - 2000/03 National Center for Science Information Systems Database Division, Operations Department Chief
- 1997/04 - 1998/03 National Center for Science Information Systems Database Division, Operations Department
- 1995/04 - 1997/03 National Center for Science Information Systems Database Division, Operations Department
- 1992/04 - 1995/03 National Center for Science Information Systems Database Division, Operations Department
- 1988/04 - 1992/03 Toyama University Library
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