EN
©2001-2024 Atumi & Sakai
Senior Partner
Japan (2006)
Dai-ni Tokyo Bar Association
Keio University (B.S., 2004) The Legal Training and Research Institute of the Supreme Court of Japan
Mori Hamada & Matsumoto (October 2006-August 2015)
Member of the Expert Committee for “Research and Verification Project for Internet-based Voting in Tsukuba, Ibaraki”, Research Project for the Development and Establishment, etc. of Leading-edge Services, the Cabinet Office (August 2022-March 2023)
Advisor of the Privacy Tech Association (September 2022-)
Advisor to the Cloud-type Electronic Signature Service Association (December 2022-)
Member of the "Study Group on Pharmaceuticals Marketing System" of the Ministry of Health, Labour and Welfare (February 2023-)
Advisory Board Member of the Govtech Association (March 2023-)
Member of Tsukuba City Privacy Impact Evaluation System Study Council (April 2023-)
Member of the "Evaluation and Promotion Committee for the Revitalization of Central City Areas" of the Cabinet Office (May 2023-)
Member of the “Generative AI Governance Study Group” (June 2023-)
Member of the “National Cancer Registry Information Provision Advisory Committee” of the National Cancer Center (June 2023-)
Advisor to the Real Estate Crowdfunding Association for Japan (August 2023-)
Advisor to Minokamo City for Appropriate Administrative Practices (September 2023-)
Member of the “Council for Promotion of Regulatory Reform” of the Cabinet Office (Chair of the Startup and Investment Working Group, Member of the Public Working Group) (October 2023-)
Member of the "Study Group on How to Ensure the Soundness of Information Distribution in the Digital Space"of the Ministry of Internal Affairs and Communications (October 2023-) / Constituent member of MIC's "Working Group" (January 2024-)
Mentor of the "J-StarX Entrepreneur Silicon Valley Training Program through Event Participation (Sector-specific Course)" of the Ministry of Economy, Trade and Industry and the Japan External Trade Organization (JETRO) (November 2023-)
Member of the "Working Group on Secondary Use of Medical and Other Information, Study Group on Utilization of Health, Medical and Nursing Care Information," of the Ministry of Health, Labor and Welfare (November 2023-)
Member of the "Digital-related Institutional Reform Study Group" of the Digital Agency (November 2023-)
Member of the "Study Group on the Functional Enhancement of Pharmacies and Pharmacists," of the Ministry of Health, Labor and Welfare (December 2023-)
Member of the "Sub-Working Group on Social Rules for Self-Driving Cars in the AI Era," of the Digital Agency, the Ministry of Economy, Trade and Industry and the Ministry of Land, Infrastructure, Transport and Tourism (December 2023-)
Member of the "Working Team for the Study of the Broadcasting Treaty, 23rd Term of the International Subcommittee in the Copyright Subdivision of the Cultural Council" of the Agency for Cultural Affairs (February 2024-)
Member of the "Working Group for Infrastructure Development Promotion for 5G Dissemination"of the Ministry of Internal Affairs and Communications (March 2024-)
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data: Regulatory Trends Surrounding Industrial Data, etc. in the U.S. (Part 3)," NBL No. 1263, Shojihomu (2024) [Co-author]
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data: Regulatory Trends Surrounding Industrial Data, etc. in the U.S. (Part 2)," NBL No. 1261, Shojihomu (2024) [Co-author]
Innovation in Public-Private Co-Creation: The Challenge of the Regulatory Sandbox and Beyond, K.K. Best Book (Includes a dialogue in Chapter 4) (2024)
"Survey Report on Foreign Systems that May Affect the Proper Handling of Specified User Information," Ministry of Internal Affairs and Communications (2024) [Co-author]
"Contract Templates for Equity Investment in Startups," Fintech Association of Japan (2023) [as a member of the Study Group]
"Current Situation and Future Prospects surrounding Startup Support," Horitsu no Hiroba, December 2023, the Gyosei Corporation (2023)[Co-author]
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data: Regulatory Trends Surrounding Industrial Data, etc. in the U.S. (Part 1)," NBL No. 1254, Shojihomu (2023) [Co-author]
The Development of Digital Society and the Design of Laws - "36 Challenges of Rule Formation in the Digitalization of Financial Services" in "Chapter 3: Digitalization of Financial Services and Strategic Use of Rule Formation," SHOJIHOMU Co., Ltd. (2023)[Co-author]
Digital Platforms and Rulemaking, Nippon Hyoronsha (2023) [as a member of the Platform Business Study Group]
“Impact of the District Court Decision on the XRP Litigation,” Financial and Business Law Precedents No.1674 (2023)
“Towards Responsible AI Deployment: Policy Recommendations for the Hiroshima AI Process” (Institute for Future Initiatives, The University of Tokyo, 2023) [Feedback]
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data Vol. 4: Regulatory Trends Surrounding Industrial Data, etc. in Europe (Part 4)," NBL No. 1249, Shojihomu (2023) [Co-author]
“Legal Considerations for the Diversification of Payment Methods,” GINKO JITSUMU Vol. 53 No.9 (2023) [Co-author]
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data Vol. 3: Regulatory Trends Surrounding Industrial Data, etc. in Europe (Part 3)," NBL No. 1247, Shojihomu (2023) [Co-author]
"Study on How Data Utilization should be Seen in the Information Bank Certification System," NBL No. 1246, Shojihomu (2023) [Co-author]
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data Vol. 2: Regulatory Trends Surrounding Industrial Data, etc. in Europe (Part 2)," NBL No. 1244, Shojihomu (2023) [Co-author]
“Guidance for the Appropriate and Prompt Approval and Development of Programmed Medical Devices based on their Characteristics,” Ministry of Health, Labor and Welfare (as a board member of the Japan Medical Venture Association) (May 2023)
"Issues and Prospects concerning Data Utilization Focusing on Industrial Data Vol. 1: Regulatory Trends Surrounding Industrial Data, etc. in Europe (Part 1)," NBL No. 1242, Shojihomu (2023) [Co-author]
“DFFT Initiative report,” Data Society Alliance (DSA) (2023) [Co-author]
“Survey of Legal Systems in Major European Nations regarding the Use of Cameras with Face Recognition Functionality,” Personal Information Protection Commission (2022) [Co-author]
“Expert Panel Meeting Discussion Points,” Health and Global Policy Institute (April 2024) [as an expert panel member]
"The Importance of Agile Governance in the Use of Generative AI," Consumer Data-Driven Marketing Newsletter (March 2024)[Interview]
"[For a Society Conducive to Digital Transformation] Benefits to the Private Sector Brought on by Institutional Reform," Tech Team Journal (article of a roundtable talk) (November 2023)
"What Deregulation and Business Opportunities are Brought on by DX in Administration and Finance," Tech Team Journal (article of a roundtable talk) (November 2023)
“The Truth About Digital Policy: Where We Are and Where We're Going [Masaki Ogushi, State Minister for Digital Transformation x Takafumi Ochiai, Head of Policy Research Institute],” Tech Team Journal (article of a roundtable talk) (September 2023)
“In-Depth Explanation of DFFT, A Key Topic at the 2023 G7: Will the Discussions on the "Implementation" of DFFT, which is Key to the Overseas Expansion of Japanese IT Companies, Proceed at G7?,” Nikkei X Tech (article of a roundtable talk) (April 2023)
“In-Depth Explanation of DFFT, A Key Topic at the 2023 G7: Challenges and Expectations of Generative AI ‘Here to Destroy 20 years of Trust in the Digital Domain’,” Nikkei X Tech (article of a roundtable talk) (April 2023)
"Proposal for the Promotion of the Utilization of Medical Data," The Japan Research Institute, Limited.(as a member of the Healthcare Digital Reform Roundtable) (February 2023)
“Utilization of Medical Data and Medical Information Infrastructure Systems in Various Countries,” Weekly Keidanren Times No.3578(February 2023)
"Bridging Law and Policy, Empowering Information Dissemination," Asian Legal Business Japan Edition (February 2023)[Interview]
“In-Depth Explanation of DFFT, A Key Topic at the 2023 G7: Progress in Developing a Framework for "Cross-border Transfer" of Personal Information, Contributing to the Free Distribution of Data,” Nikkei X Tech (January 2023) [Co-author]
"Stablecoins Legislation and Other Legislative Changes Affecting the Japan Fintech Industry," Chambers FinTech 2023 (January, 2023) [Co-author]
[Survey Document] “Major Laws and Regulations related to FinTech,” The Center for Financial Industry Information Systems (FISC) (December 2022) [Co-author]
“In-Depth Explanation of DFFT, A Key Topic at the 2023 G7: How to Create Rules for International Data Transfers? The Reason why DFFT is a Global Topic,” Nikkei X Tech (December 2022) [Co-author]
"Key Points on and Practical Response to 2021 Amended Act on Preservation of Electronic Books - Focusing on Invoice Systems," BUSINESS LAWYERS (March 2022)
"Report of Working Group on Capital Market Regulations and Asset Management Task Force of the Financial System Council," Policy Research Institute (April 5, 2024) [Co-author]
"Report of Working Group on Capital Market Regulations and Asset Management Task Force of the Financial System Council," Policy Research Institute (March 13, 2024) [Co-author]
”Publishing of a working draft of a "Basic Law for Promoting Responsible AI" submitted to a project team of the Liberal Democratic Party of Japan," Policy Research Institute (February 29, 2024) [Co-author]
"Report of the Working Group on Capital Market Regulations and Asset Management Task Force of the Financial System Council," Policy Research Institute (February 20, 2024) [Co-author]
"Amendments of Cabinet Office Order on Financial Instruments Business, etc. for the improvement of Concurrent Engagement in an Investment Advisory Business," Policy Research Institute (August 15, 2023) [Co-author]
”Efforts to Respect Human Rights in Japan -Publication of the "Reference Material on Practical Approaches for Business Enterprises to Respect Human Rights in Responsible Supply Chains" by the Ministry of Economy, Trade and Industry (April 2023)-” (July 25, 2023) [Co-author]
JFSA On-demand Training entitled "Latest Trends in the Fintech Sector," hosted by Japan Financial Services Association, September 26, 2022
"Overview of Case Studies of Embedded Finance in Foreign Countries and Legal Points to Note upon Implementation in Japan," at a syposium "[EXECUTIVE SYMPOSIUM] Potential for Embedded Finance and Governance Risk Management," hosted by Seminar Info Co.,Ltd., July 7, 2022
The Best Lawyers in Japan 2025
Banking and Finance Law
Corporate Governance and Compliance Practice
FT Innovative Lawyers Asia-Pacific Awards 2023
Innovation in Adjacent Services (Firm)
Shortlisted for Innovative Practitioners (Individual)
The Best Lawyers in Japan 2024