- 1993 - 2016 電子情報通信学会 Dグループ英文誌編集委員会顧問(電子情報通信学会英文論文誌D編集委員会英文アドバイザリィ)
- 1993 - 2016 IEICE Advisory Member, IEICE Trans. on Information and Systems
- 1995 - 2012 電子情報通信学会 Dグループ英文誌編集委員会顧問
- 1991 - 2012 IEEE ATS Steering Committee Member
- 2004 - 2008 IEEE Computer Society Chair, Asia and Pacific Regional TTTC,
- 2004 - 2008 IEEE ASP-DAC Steering Committee Member
- 2004 - 2008 IEEE (The Institute of Electrical and Electronics Engineers, Inc.) IEEE Computer Society, Test Technology Technical Council, Asia and Pacific Regional TTTC 委員長
- 2004 - 2008 IEEE,Computer Society, Test Technology Technical Council Chair, Asia and Pacific Regional TTTC, IEEE Computer Society
- 2003 - 2008 IEEE 関西支部理事
- 2003 - 2008 IEEE (The Institute of Electrical and Electronics Engineers, Inc.) IEEE関西支部理事
- 2003 - 2008 IEEE Board Member of IEEE Kansai Section (in Japan, Region 10)
- 2003 - 2006 IEEE (The Institute of Electrical and Electronics Engineers, Inc.) IEEE WRTLT Steering Committee委員長
- 2003 - 2006 IEEE, Computer Society, Test Technology Technical Council IEEE WRTLT Steering Committee Chair
- 2001 - 2004 IEEE ATS (Asian Test Symposium) Steering Committee Chair
- 2001 - 2004 IEEE (The Institute of Electrical and Electronics Engineers, Inc.) IEEE Asian Test Symposium Steering Committee委員長
- 2001 - 2004 IEEE, Computer Society, Test Technology Technical Council Chair, IEEE Asian Test Symposium Steering Committee
- 1998 - 2002 IEEE (The Institute of Electrical and Electronics Engineers, Inc.) IEEE Transactions on Computers 編集委員
- 1998 - 2002 IEEE Associate Editor, IEEE Transactions on Computers
- 1992 - 2000 IEEE,Computer Socciety,Test Technology Technical Council Vice Chair, IEEE TTTC Awards Committee
- 1995 - 1997 電子情報通信学会 フォールトトレラントシステム研究専門委員会・委員長
- 1995 - 1997 IEICE Chair, Technical Group on Fault Tolerant Systems
- 1993 - 1996 電子情報通信学会 編集会議編集顧問
- 1993 - 1996 IEICE Advisory Member, IEICE Editorial Board
- 1992 - 1993 電子情報通信学会 VLSI設計技術研究専門委員会・委員長
- 1992 - 1993 IEICE Chair, Technical Group on VLSI Design Technology
- 1990 - 1992 IEICE Editor, IEICE Trans. on Information and Systems, IEICE Japan, May 1990 - Dec. 1992
- 1988 - 1992 IEEE Asian Vice Chair, IEEE International Test Conference
- 1986 - 1991 IEEE Far East Editor, IEEE Design and Test of Computers