| Activity like international organization and public organization, etc. |
| No. | Organization name | Committee name | Position title | Fiscal year of activity |
| 1 | Omuta city in Fukuoka Pref. | Public-Private Partnership Town Revitalization Promotion Projects | chairman | 2022 - 2023 |
| 2 | Japan International Cooperation Agency (JICA) | Study on Planning and Implementation of Transit-Oriented Development (TOD) for Sustainable Cities in the world | commitee member | 2022 - 2023 |
| 3 | Japan Overseas Infrastructure Investment Corporation for Transport & Urban Development (JOIN), | Urban developments and maintenance projects | chairman | 2022 - 2023 |
| 4 | Ministary of Land , Infrastracture and Tourism | Executive candidate training course | Lecturer | 2021 - NOW |
| 5 | Yokohama City | Examination of measures to support participation of city companies, etc. in smart urban development projects in emerging countries | Advicer | 2020 - NOW |
| 6 | Tokyu Coporation,East Japan Railway Company,Tokyo Metro Co. | Shibuya SCSQ Innovation Project Concept Committee | A member | 2017 - NOW |
| 7 | Omuta city, Fkuoka pref. Japan | A person waits; a work district wound straight study meeting | committee | 2015 - NOW |
| 8 | Cabinet Secretariat | Industrial competitiveness meeting international development WG | committee | 2014 - 2014 |
| 9 | Ministry of Land Infrastructure and Transpor | Ballast inflection study meeting of the sewerage treatment water | committee | 2010 - 2010 |
| 10 | Security strategy mechanism of the water | Water Finance Team | Representative secretary | 2010 - NOW |
| 11 | Inter-risk research institute | Water infrastructure meeting for the study | committee | 2010 - 2011 |
| Mass communication publishing and appearance |
| No. | Type | Organization name | Title | Volume, title, and program name, etc. | Date of execution |
| 1 | Others | Aichi TV | Sunday Journal | ISBN:4434287389 | Apr. 2021 |
| 2 | Appearance | TV Asahi Corporation | Panel commentary "The Governor's election... the problem of "old Tokyo" after the Olympics" | Morning Show by Mr. Toba | Jun. 2020 |
| 3 | Coverage | Tokyo Television | | Tokyo Television | Apr. 2020 |
| 4 | Coverage | Toyo Keizai Publisher | Shocking news, increasing non residential town | Feb. 1 2020 | Feb. 2020 |
| 5 | Coverage | THE SHIKOKU SHIMBUN | Possible to order corrective piping | Morning paper Page3 | Jan. 2018 |
| 6 | Coverage | Kobe Shimbun | Law amendment to prevent road collapse | Morning paper Page5 | Jan. 2018 |
| 7 | Coverage | Minami-Nippon Shimbun | Order for repairing old plumbing | Morning paper Page4 | Jan. 2018 |
| 8 | Coverage | Iwate Nippo | Consider order to rectify old aged plumbing underground | Morning paper Page3 | Jan. 2018 |
| 9 | Coverage | The Saitama Shimbun | Consider order to rectify old aged plumbing underground | Morning paper Page3 | Jan. 2018 |
| 10 | Coverage | The Ise Shimbun | Corrective order to old basement plumbing | Morning paper Page2 | Jan. 2018 |
| 11 | Coverage | Yamagata Shimbun | Order for repairing old plumbing | Morning paper Page4 | Jan. 2018 |
| 12 | Coverage | Kumamotonichinichi shimbun | Order for repairing old plumbing | Morning paper Page4 | Jan. 2018 |
| 13 | Coverage | The Asahi Shimbun Company | Fu-dosan no zidai | Forum | Sep. 2017 |
| 14 | Appearance | Aichi Television Broadcasting Co., Ltd | I thoroughly analyze "circumstances of Aichi accomplishing evolution with ground under the ground" | Sunday Journal | Jun. 2017 |
| 15 | Appearance | Fukuoka Broadcasting System Corporation | The infrastructure crisis -Hakata station square road cave- | Eyewitness f | Mar. 2017 |
| 16 | Appearance | Aichi Television Broadcasting Co., Ltd | Solve the mystery of three "public works projects" of Aich | The Sunday Journal | Mar. 2017 |
| 17 | Appearance | Japan Broadcasting Corporation | The Crisis of infrastructure -Spread underground crisis- | Today's Close-up | Dec. 2016 |
| 18 | Appearance | Japan Broadcasting Corporation | Bark from Asia | Kansai Close-up | Sep. 2014 |
| 19 | Appearance | Japan Broadcasting Corporation | High way Crisis | Kansai Close-up | Mar. 2014 |
| 20 | Appearance | Japan Broadcasting Corporation | What's happen in the underground | Kansai Close-up | Oct. 2013 |
| 21 | Appearance | Japan Broadcasting Corporation | Can we gard from Crisis? | Tokuho-Syutoken | Apr. 2013 |
| 22 | Appearance | Japan Broadcasting Corporation | Infrastructure Crisis | Fukayomi | Dec. 2012 |
| 23 | Appearance | Japan Broadcasting Corporation | "Choice and concentration" ... population decline infrastructure rebuilding | Shikoku-Rashinban | Dec. 2012 |
| 24 | Appearance | Japan Broadcasting Corporation | By stimulation of the private sector to reproduction | Tokuho-Syutoken | Oct. 2011 |
| 25 | Appearance | Japan Broadcasting Corporation | Where can you take "the public" by private power to? | Tokuho-Syutoken | Jan. 2011 |
| 26 | Appearance | Japan Broadcasting Corporation | Shrinking Japan. What do you give up leaving what? | Tokuho-Syutoken | Dec. 2010 |
| 27 | Appearance | Japan Broadcasting Corporation | Ballast water inflection study meeting of the sewerage treatment water | Good Morning Japan | Dec. 2009 |
| 28 | Appearance | TV TOKYO Corporation | Infrastructure crisis | World Business Satellite | Dec. 2008 |
| 29 | Appearance | Japan Broadcasting Corporation | A fund aims at infrastructure | Today's Close-up | Jul. 2008 |
| 30 | Appearance | TV TOKYO Corporation | Office market trend of the Tokyo downtown area | World Business Satellite | Jul. 2007 |
