- 2016/02 - 現在 High Power Laser Science and Engineering,Cambridge University Press Editorial board member
- 2013/01 - 現在 IEEE(Institute of Electrical and Electronics Engineers) Senior membership
- 2010 - 現在 PSE (Problem Solving Environment) in JCIS ( Journal of Communications and Information Sciences), Topics Editor-in-Chief,
- 2010 - 2020 J. Convergence Information Technology topics Editor-in-Chief
- 2018/09 - 2018/09 第21回 PSEワークショップ主催 ワークショップ主催
- 2018/03 - 2018/03 2018年第1回PSE研究会 PSE研究会主査・研究会幹事
- 2018/03 - 2018/03 第1回ビジュアリゼーションワークショップ 実行委員幹事
- 2017/09 - 2017/09 日本計算工学会論文集PSE特集号 編集委員長:2017.09.20 発行
- 2017/09 - 2017/09 日本物理学会2017年秋季大会(素核宇) 実行委員会委員
- 2017/08 - 2017/08 第20回国際PSEワークショップ主催 主催者
- 2016/07 - 2016/07 The 12th World Congress on Computational Mechanics(WCCM12) & The 6th Asia-Pacific Congress on Computational Mechanics(APCOM6) PSE mini Symposium Organizer
- 2016/07 - 2016/07 the 21st International Symposium on Heavy Ion Inertial Fusion (HIF2016), Astana 152. A member of International Advisory and Scientific Program Committee
- 2016/07 - 2016/07 the 21st International Symposium on Heavy Ion Inertial Fusion (HIF2016) A member of International Advisory and Scientific Program Committee
- 2016/06 - 2016/06 第一回日本計算工学会PSE研究会 主催者
- 2016/05 - 2016/05 第21回計算工学会講演会 オーガナイズドセッションオーガナイザー
- 2015/04 - 2016/03 PSE研究会 主催者
- 2013/04 - 2014/03 一般社団法人プラズマ・核融合学会 代議員
- 2013/11 - 2013/11 日本計算工学会PSE(Problem Solving Environment)研究分科会 主査
- 2013/09 - 2013/09 第8回慣性核融合科学とその応用に関する国際会議(IFSA2013) 組織委員会委員
- 2013/08 - 2013/08 Data-Intensive Scientific Discovery (DISD2013) International Federation for Information Processing (IFIP) Working Group of Numerical Software (WG2.5) Program Committee Member
- 2013/08 - 2013/08 Data-Intensive Scientific Discovery (DISD2013) International Federation for Information Processing (IFIP) Working Group of Numerical Software (WG2.5) Organization Committee Co-Chair
- 2008 - 2013 日本計算工学会 理事
- 2008 - 2013 International Association of Computational Mechanics(IACM) Member of General Council
- 2012/12 - 2012/12 ICCCT 2012(2012 7th International Conference on Computing and Convergence Technology), ICCIT2012(2012 7th International Conference on Conputer Sciences and Convergence Information Technology, ICEI2012(2012 3rd International Conference on Engineering Indus Editors
- 2012/12 - 2012/12 ICCCT 2012(2012 7th International Conference on Computing and Convergence Technology), ICCIT2012(2012 7th International Conference on Conputer Sciences and Convergence Information Technology, ICEI2012(2012 3rd International Conference on Engineering Indus General and Program Chairs
- 2012/12 - 2012/12 ICCCT 2012(2012 7th International Conference on Computing and Convergence Technology), ICCIT2012(2012 7th International Conference on Conputer Sciences and Convergence Information Technology, ICEI2012(2012 3rd International Conference on Engineering Indus Advisory Board and Honorary Chairs
- 2011/12 - 2012/11 日本学術振興会 科学研究費委員会専門委員
- 2012/07 - 2012/07 10th World Congress on Computational Mechanics 2012 International scientific committee
- 2011/04 - 2012/03 University of Macau Associate Professor Promotion Evaluation committee member
- 2011/11 - 2011/12 ICIPM2011(The 7th Int. Conf. on Information Processing and Management) Advisory Board and Honorary Chairs and Program Committee
- 2011/11 - 2011/12 IECI2011(The 2nd Int. Conf. on Engineering and Industries) Advisory Board and Honorary Chairs and Program Committee
- 2011/11 - 2011/12 ICCIT2011(The 6th Int. Conf. on Computer Sciences and Convergence Information Technology) Advisory Board and Honorary Chairs and Program Committee
- 2011/11 - 2011/12 ICIPM2011(The 7th Int. Conf. on Information Processing and Management Editor for Proceedings
- 2011/11 - 2011/12 IECI2011(The 2nd Int. Conf. on Engineering and Industries) Editor for Proceedings
- 2011/11 - 2011/12 ICCIT2011(The 6th Int. Conf. on Computer Sciences and Convergence Information Technology) Editor for Proceedings
- 2011/11 - 2011/12 ICCIT2011 (6th Int. Conf. on Computer Sciences and Convergence Information Technology) and IMS 2010 (7th Int. conf. on Advanced Information Management and Service), General chair and program chair
- 2011/10 - 2011/10 ICMIA (3rd International Conference on Data Mining and Intelligent Information Technology Applications) Program committee member
- 2011/03 - 2011/03 日本計算工学会S&V (Simulation & Visualization)研究会 幹事
- 2011 - 2011 Czech Science Foundation (GACR) Proposal review member
- 2010/11 - 2010/12 ICCIT 2010 (5th Int. Conf. on Computer Sciences and Convergence Information Technology) and IMS 2010 (6th Int. conf. on Advanced Information Management and Service) and ICMIA 2010 (2nd Int. Conf. on Data Mining and Intelligent Information Technology Appli General chair and Program chai
- 2010/11 - 2010/12 Int. Conf. on Computer Sciences and Convergence Information Technology General & program Chair and invited Session Chair
- 2010/09 - 2010/09 第13回PSEワークショップ゚ 組織委員
- 2010/08 - 2010/08 5th Asia Summer School and Symposium on laser-plasma Acceleration and Radiation(ASS2010) International Curriculum and Program (ICP) Committee,
- 2010/06 - 2010/06 6th International Conference on Networked Computing and Advanced Information Management (NCM2010), Committee member and Organization and Publicity Chairs
- 2010/06 - 2010/06 he 3rd International Conference on Information Sciences and Interaction Sciences(ICIS2010) Committee member
- 2010/06 - Scientific Commiittee member : the 16th International Workshop “Beam Dynamics and Optimization (BDO'2010')”
- 2010/05 - 2010/05 the 4th International Conference on New Trends in Information Science and Service Science(NISS2010) Committee member
- 2008/09/01 - 2010/03/31 独立行政法人科学技術振興機構JSTイノベーションサテライト茨城地域ニーズ即応型査読評価委員
- 2007/04/01 - 2010/03/31 国立大学法人電気通信大学レーザー新世代研究センター共同研究員
- 2010 - 2010 Journal of Convergence Information Technology Editor
- 2010 - International Curriculum and Program (ICP) Committee, 5th Asia Summer School and Symposium on laser-plasma Acceleration and Radiation(ASS2010)
- 2010 - Program Committee member : SPPT2010
- 2010 - J. Convergence Information Technology Associate Editors-in-Chief
- 2007/09/01 - 2009/08/31 日本物理学会 代議員
- 2008/04/01 - 2009/03/31 独立行政法人科学技術振興機構JSTイノベーションサテライト茨城シーズ発掘試験査読評価委員
- 2006 - 2009 日本計算工学会 評議員
- 2009 - General and Program Chairs and International Program Committee member : ICCIT09
- 2009 - International Scientific Committee : HPCA2009
- 2009 - Organization and Publicity Chair :IMS09
- 2009 - Committee Member : CLEO/Pacific Rim 2009
- 2009 - Organization and Publicity Chairs : NCM2009
- 2009 - Pogram committee member : ICCS 2009
- 2008/12 - 第25回(社)プラズマ・核融合学会年会現地実行委員長
- 2007/04/01 - 2008/03/31 独立行政法人科学技術振興機構JSTイノベーションサテライト茨城シーズ発掘試験査読評価委員
- 2008 - Committee Member : PSE Workshop 2008
- 2008 - Committee Member, organizer : IEEE e-Science08
- 2008 - International Advisory Committee,Scientific Program Committee, Organizing Committee, NIMA Guest Editor : HIF2008
- 2008 - Programme Committee : International Conference on Computational Science 2008
- 2008 - International Committee, Organization and Publicity chairs : 4th International Conference on Networked Computing and Advanced Information Management(NCM08)
- 2008 - International Program Committee : International Conference on Convergence and Hybrid Information Technology 2008(ICCIT08)
- 2008 - Scientific Commiittee member : the 15th International Workshop “Beam Dynamics and Optimization (BDO'2008)”
- 2008 - Program Committee member : Plasma Symposium in Prague
- 2007/09 - 第10回PSE Workshop 主催
- 2007 - 小山工業高等専門学校外部評価委員委員長
- 2007 - Program Commiittee member : the 14th International Workshop “Beam Dynamics and Optimization (BDO'2007)”
- 2007 - Program Committee Member : Int. Conf. on Computational Sciences2007
- 2006/09 - 第9回PSE Workshop 主催 座長
- 1998/04/01 - 2006/03/31 電気通信大学レーザー新世代研究センター 共同研究員
- 2004/04 - 2006/03 電気学会 論文委員会(A1bグループ)委員
- 2006 - Organizer : the 2nd IEEE International Conference on e-Science and Grid Computing
- 2006 - Organization Committee member : the 2nd IEEE International Conference on e-Science and Grid Computing
- 2006 - Program Comiittee member : the 13th International Workshop “Beam Dynamics and Optimization (BDO'2006)”
- 2006 - the chair : Ninth US-Japan Workshop on Heavy Ion Fusion High Energy Density Physics
- 2006 - Workshop Chair & Program Committee Member : PSE Workshop
- 2006 - International Advisory Committee : ICAP06
- 2006 - Programme Committee Member : RPIA2006
- 2006 - Programme Committee member : The 22nd Symposium on Plasma Physics and Technology
- 2002 - 2005 1986.6-1998.3, 2000, 2002-2005d大阪大学レーザー核融合研究センター共同研究委員
- - 2005 2005 Program committee member : International Symposium Topical Problems of Nonlinear Wave Physics-2005
- 2005 - プラズマ・核融合学会研究調査専門委員会「プラズマ応用粒子加速器専門員会」
- 2005 - Workshop Chair : PSE Workshop 2005
- 2004/10/24 - -25日 第7回PSEWorkshop 組織委員、
- 2004 - プラズマ・核融合学会、プラズマ応用粒子加速器”専門委員会
- 2004 - Advisory Committee member : Int. Computational Accelerator Physics
- 2004 - the chair : 15th Int. Symp. on Heavy ion Inertial Fusion,
- 2004 - the chair : ICAP Int. Computational Accelerator Physics (
- 2004 - the chair : APLS4th Asian Pacific Laser Symposium
- 2004 - International Committee member : Int. Workshop on Fast Ignition and High Field Physics 2004
- 2003/07 - 第6回 問題解決環境(PSE) Workshop 主催
- 2003/05 - 日本計算工学会 第8回講演会オーガナイザー
- 2002/11/01 - -2003年 可視化情報学会全国講演会(宇都宮)実行委員会委員
- 2002/08 - 第5回 問題解決環境(PSE) Workshop 主催
- 2002/05 - 日本計算工学会 第7回講演会オーガナイザー
- 2001/08 - 第4回 問題解決環境(PSE) Workshop 主催
- 2001/05 - 日本計算工学会 第6回講演会オーガナイザー
- 1999/04 - 2001/03 日本応用数理学会論文誌編集委員
- 2001 - Program Committee ("the 10th Int. Conf. on Applied Accelerators)
- 2001 - Program Committee : the 10th Int. Conf. on Applied Accelerators
- 2000/08 - 第3回 問題解決環境(PSE) Workshop 主催
- 2000/05 - 日本計算工学会 第5回講演会オーガナイザー
- 2000 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1999/09 - 第2回 問題解決環境(PSE) Workshop 主催
- 1999/05 - 日本計算工学会 第4回講演会オーガナイザー
- 1998 - 1999 電子情報通信学会 信越支部 役員
- 1999 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1998/07 - 第1回 問題解決環境(PSE) Workshop 主催
- 1998/05/23 - ~1999年5月 電子情報通信学会 学会誌編集員
- 1998/05 - 日本計算工学会 第3回講演会オーガナイザー
- 1997 - 1998 情報処理学会 数理モデル化と問題解決研究会連絡委員
- 1998 - 情報処理学会 数理モデル化と問題解決研究会 論文誌編集委員
- 1998 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1998 - Int. Program Committee : Int. Conf. on Applied Modeling and Simulation
- 1997/05/17 - ~2003年5月 電子情報通信学会 ソフトウエアサイエンス研究会 専門委員
- 1997/05 - 日本計算工学会 第2回講演会オーガナイザー
- 1997 - 日本計算工学会 評議員
- 1997 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1997 - Int. Program Committee : Int. Conf. on Applied Modeling and Simulation
- 1992/04 - 1996/03 日本原子力学会「重イオン慣性核融合」研究専門委員会 幹事
- 1995 - 1996 文部省委託調査研究 「工学系学部における専門基礎としての情報処理教育の実態に関する調査委員会」委員
- 1996 - ~日本計算工学会 評議委員
- 1996 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1994/09 - 1995/08 日本物理学会 第50期Journal編集委員会委員
- 1995 - Local Committee : Internationl Workshop on Ion Beam Driven ICF
- 1995 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1994 - Program Committee : Workshop on Beam Dynamics and Optimization
- 1986/09 - 1988/08 ,1990.9~1996,8 日本物理学会 委員
- 1987/05 - 1988/04 日本物理学会世話人
- 1986 - 日本物理学会 委員
- 1986 - Steering Committee :Inertial-Confinement Fusion Research by High-Power Particle Beams
- ~核融合科学研究所共同研究員