- Japan Society for the Promotion of Science Ultra-integrated Devices and Systems 165 committee
- New Functional Device Research and Development Association Quantization Functional Device Technology Trends Research Committee
- Symposium on VLSI Technology program committee,Symposia Officer
- International Conference on Solid State Devices and Materials (SSDM) editorial committee、Area3, CMOS Devices / Device Physics Subcommittee (2002-2003 committee、Chair 2004-2007、Cochair2008)
- International Symposium on VLSI Technology, Systems, and Applications (VLSI-TSA), Technical Program Committee Japan Subcommittee member (2006-2011)
- International Electron Devices Meeting (IEDM), Program Committee, Process Technology, Subcommittee member(2008-2011)
- ITRS (JEITA) Semiconductor Technology Roadmap Committee WG6 PIDS (Process Integration and Device Structure) special commitee
- Representative Commitee of the JSAP (2008-2011)
- IWJT (International Workshop on Junction Technology) Committee
- Silicon Technology Branch Committee of the JSAP (2005-2006)
（Passed away in 2011. A memorial session was held at the beginning of the VLSI Symposium 2011.）
