- 2024/05 - 現在 PVTEC Photovoltaic Power Generation Technology Research Association METI, International Standardization Stering Committee for Building and Structure-integrated Photovoltaics, member
- 2024/05 - 現在 PVTEC Photovoltaic Power Generation Technology Research Association METI, International Standardization Committee for Building and Structure-integrated Photovoltaics
- 2024/05 - 現在 Japan Solar Energy Society Director of Japan Solar Energy Society
- 2024/02 - 現在 IEA (International Energy Agency) PVPS (Photovoltaic Power Systems Programme TCP) Task15 PH-3, Expert (BIPV and Facade Engineering)
- 2023/05 - 現在 Japan Council for Renewable Energy (JCRE) Director of Japan Council for Renewable Energy (JCRE)
- 2021/05 - 現在 International Electrotechnical Commission TC82 PT63092-3, Project Leader
- 2020/09 - 現在 PVTEC ; Photovoltaic Power Generation Technology Research Association NEDO Project, Committee of create guideline for BIPV and develop based technology. Leader
- 2018/07 - 現在 IEC (The International Electrotechnical Commission) TC82 PT61853 Expert
- 2017/04 - 現在 IEC (The International Electrotechnical Commission) TC82 PT63092
- 2015/04 - 現在 AIJ (Architectural Institute of Japan) Revision Committee of JASS (Japan Architectural Standard Specification) 17 for Glass and Glazing work
- 2014/09 - 現在 Environmentally Symbiotic Housing Promotion Council Committee for the spread of environmentally symbiotic housing, member
- 2014/04 - 現在 Solar Energy Design Consortium https://www.solar-design.jp/ Vice chair person
- 2006 - 現在 AIJ (Architectural Institute of Japan) Working for fire resistance about aluminum structure, member
- 2021/04 - 2024/03 PVTEC Photovoltaic Power Generation Technology Research Association METI International Standardization Committee for Building Integrated Photovoltaic
- 2020/02 - 2024/02 IEA (International Energy Agency) PVPS (Photovoltaic Power Systems Programme) Task15 PH-2, Expert (BIPV and Facade Engineering)
- 2018/04 - 2021/03 PVTEC Photovoltaic Power Generation Technology Research Association METI Building sector in Committee of BIPV Module and Systems International Standardization, chair
- 2018/04 - 2021/03 PVTEC Photovoltaic Power Generation Technology Research Association METI BIPV Module and Systems International Standardization Committee expert
- 2018/04 - 2021/03 PVTEC Photovoltaic Power Generation Technology Research Association METI Steering Committee of BIPV Module and Systems International Standardization, member
- 2015/04 - 2020/01 IEA (International Energy Agency) PVPS TASK 15 PH-1, Expert (BIPV and Facade Engineering)
- 2018/07 - 2019/06 Public Buildings Association MLIT (Ministry of Land, Infrastructure, Transport and Tourism) Committee of Revising Design and Supervision about Roofs and Metals, member
- 2018/10 - 2019/03 Fukushima prefectural center for industrial promotion of public interest incorporated foundation Committee of Fukushima Prefecture Renewable Energy Infrastructure Strategic Project, ,member
- 2015/04 - 2019/03 AIJ (Architectural Institute of Japan) Committee of evaluation of durability for structural sealant glazing, Co chair
- 2015/04 - 2019/03 AIJ (Architectural Institute of Japan) Revision Committee of JASS (Japan Architectural Standard Specification) 17 for Glass and Glazing work, Working of SSG systems survey, member
- 2013/04 - 2019/03 AIJ (Architectural Institute of Japan) Committee of research for thermal environment building material, member
- 2015/04 - 2018/03 PVTEC Photovoltaic Power Generation Technology Research Association METI Building sector in Committee of BIPV International Standardization, co chair
- 2015/04 - 2018/03 PVTEC Photovoltaic Power Generation Technology Research Association METI BIPV International Standardization Committee member
- 2015/04 - 2018/03 PVTEC Photovoltaic Power Generation Technology Research Association METI BIPV International Standardization Steering Committee member
- 2014/04 - 2018/03 AIJ (Architectural Institute of Japan) Committee of Research for Integration of PV systems and architecture, co chair
- 2016/04 - 2016/09 PVTEC Photovoltaic Power Generation Technology Research Association NEDO Project, BIPV review committee member regarding 2016 High-performance and high-reliability photovoltaic power generation cost reduction technology development trend survey.
- 2015/07 - 2016/06 Public Buildings Association, MLIT (Ministry of Land, Infrastructure, Transport and Tourism) Revising Design and Supervision about Roofs and Metals committee, member
- 2014/07 - 2015/03 PVTEC ; Photovoltaic Power Generation Technology Research Association METI, Committee member for Research on Feasibility studies of BIPV International standardization
- 2013/04 - 2015/03 AIJ (Architectural Institute of Japan) structural sealant glazing system research working, vice chairman
- 2012/04 - 2014/03 日本建築学会 構造用教材改訂版編集委員会構法部会 協力委員
- 2012/07 - 2013/06 Public Buildings Association, MLIT (Ministry of Land, Infrastructure, Transport and Tourism) Revising Design and Supervision about Roofs and Metals committee, member
- 2010/04 - 2011/03 AIJ (Architectural Institute of Japan) committee member of creating technological guideline for glass mullion systems
- 2009/04 - 2011/03 JSSC (Japanese Society of Steel Construction) committee member of creating technological guideline for glass facade systems
- 2010/04 - Society of architectural renovation committee member of windows and curtain wall systems
- 2008/04 - 2010/03 AIJ (Architectural Institute of Japan) Committee of SSG systems, member
- 2006 - 2009 JSSC (Japanese Society of Steel Construction) committee member of making hybrid structural systems glass and steel working
- 2006/11 - 2008/03 日本建築学会 シール接合構法小委員会 委員