- 2011/06 - 現在 Tech Science Press Editorial Board: CMES(Computer Modeling in Engineering & Sciences; ISBN:1526-1492)
- 2004 - 現在 日本計算数理工学会 評議員
- 2021/01 - 2021/01 ICCES Symposium Organizer: International Conference on Computational & Experimental Engineering and Sciences (ICCES20/21), January 6-10, 2021, Phuket (Zoom)
- 2019/03 - 2019/03 ICCES Local Organizing Committee and Symposium Organizer: International Conference on Computational & Experimental Engineering and Sciences (ICCES2019), March 25-28, 2019, Tokyo, Japan
- 2017/06 - 2017/06 ICCES Executive Organizing Committee and Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'17), June 26-30, 2017, Funchal, Madeira Island, Portugal
- 2015/07 - 2015/07 ICCES Country Chair and Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'15), July 20-24, 2015, Reno, NV, USA.
- 2014/06 - 2014/06 ICCES Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'14), June 12-17, 2014, Changwon, Korea.
- 2013/05 - 2013/05 ICCES Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'13), May 24-28, 2013, Seattle, USA.
- 2013/05 - 2013/05 ICCES Scientific Committee: ICCES Special Symposium on Meshless & Other Novel Computational Methods (ICCES MM2013), May 24-28, 2013, Seattle, USA.
- 2012/09/02 - 2012/09/06 ICCES Scientific Committee: ICCES Special Symposium on Meshless & Other Novel Computational Methods, Sep.2-6, 2012, Maestral Hotel, Budva, Montenegro.
- 2012/09 - 2012/09 ICCES Scientific Committee: ICCES Special Symposium on Meshless & Other Novel Computational Methods, ,Sep.2-6, 2012, Maestral Hotel, Budva, Montenegro.
- 2012/04 - 2012/05 ICCES Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'12), April 30-May 4, 2012, Crete, Greece.
- 2011/09/06 - 2011/09/10 ICCES Scientific Committee: ICCES Special Symposium on Meshless & Other Novel Computational Methods, Sep.6-10, 2011, Emirgan Hotel, Zonguldak, Turkey.
- 2011/09 - 2011/09 ICCES Scientific Committee: ICCES Special Symposium on Meshless & Other Novel Computational Methods, ,Sep.6-10, 2011, Emirgan Hotel, Zonguldak, Turkey.
- 2011/04 - 2011/04 ICCES Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'11), April 18-21, 2011, Nanjing, China.
- 2010/08 - 2010/08 ICCES Scientific Committee: ICCES Special Symposium on Meshless & Other Novel Computational Methods, Aug.17-21, 2010, Lotte Hotel, Busan, Korea.
- 2010/03 - 2010/04 ICCES(International Conference on Computational & Experimental Engineering and Sciences) Symposia Organizers: International Conference on Computational & Experimental Engineering and Sciences (ICCES'10), Mar.28-Apr.1, 2010, Las Vegas, USA.