- 2024/06 - 現在 Institute of Electronics, Information and Communication Engineers (IEICE) Chair, Technical Committee on Network System
- 2020/06 - 現在 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Information and Communication Management
- 2015/07 - 現在 The Institute of Electronics, Information and Communication Engineers (IEICE) Member, Accreditation Policy Council
- 2014/06 - 現在 Japan Society for Engineering Education Member, Committee on Public Information
- 2009/04 - 現在 The Institute of Electronics, Information and Communication Engineers (IEICE) Adviser, Tokyo Branch Student Section
- 2003/05 - 現在 The Institute of Electronics, Information and Communication Engineers (IEICE) Reviewer, IEICE Transactions on Communications
- 2002/07 - 現在 Japan Society for Engineering Education Member, Editorial and Publication Committee
- 2001/04 - 現在 The Center for Financial Industry Information Systems Member of Editorial Committee on FISC Security Guidelines
- 2022/05 - 2024/06 The Institute of Electronics, Information and Communication Engineers (IEICE) Vice Chair, Technical Committee on Network System
- 2011/04 - 2023/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Network Virtualization
- 2020/05 - 2022/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Secretary, Tokyo Branch
- 2018/05 - 2020/06 The Institute of Electronics, Information and Communication Engineers (IEICE) Vice Chair, Technical Committee on Information and Communication Management
- 2016/05 - 2018/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Information and Communication Management
- 2010/05 - 2016/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Network Systems
- 2002/05 - 2015/07 The Institute of Electronics, Information and Communication Engineers (IEICE) Secretary, Accreditation Policy Council
- 2012/05 - 2014/06 The Institute of Electronics, Information and Communication Engineers (IEICE) Director, General Affairs, Communications Society
- 2003/05 - 2011/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Communication Quality
- 2008/05 - 2010/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Secretary, Technical Committee on Network Systems
- 2002/05 - 2008/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Network Systems
- 2004/08 - 2007/03 The Institute of Electronics, Information and Communication Engineers (IEICE) Associate Secretary, Technical Committee on Ad Hoc Networks
- 2003/05 - 2004/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Member, Newsletter Publication Committee, Communication Society
- 2001/04 - 2003/03 The Institute of Electronics, Information and Communication Engineers (IEICE) Expert Member, Technical Committee on Next-Generation Network Middleware and Distributed Computing
- 2001/12 - 2002/05 The Institute of Electronics, Information and Communication Engineers (IEICE) Associate Secretary, IEICE Committee on JABEE