Yu Mizushima

Akasaka Office
Admitted in Japan

After passing the bar exam, he worked at the Bank of Japan for 12 years before joining So Sato Law Office in November 2023. During his time at the Bank of Japan, he handled a broad range of matters, including contract law and risk management related to system development, financial institution examinations, financial regulatory compliance, and international relations. He also studied abroad to obtain an MBA from INSEAD and was seconded to Japan Exchange Group, Inc.

His current practice focuses on Web3 (crypto assets, stablecoins, DeFi, DePIN, etc.), FinTech, and funds. Regarding Web3 in particular, he participates in various committees and guideline developments of the Japan Cryptocurrency Business Association (JCBA), and is a member of the Cryptocurrency ETF Study Group, making policy and institutional recommendations, thereby working to develop the industry from both a practical and regulatory perspective.

He is also focusing on quantum technology-related initiatives, and in addition to holding seminars and contributing to the media on quantum technology and legal matters, he is also active on the business side (Awarded Second Prize in MEXT’s “Q-LEAP” business contest and passed the NEDO “NEDO Challenge” screening review).

Practice Areas

Web3, FinTech, Quantum Technology, Investment Funds, M&A, and General Corporate

Language

Japanese, English

11/2023- So & Sato Law Offices -Akasaka
06/2019 -06/2021 Secondment to Japan Exchange Group, Inc. (Japan Securities Clearing Corporation)
08/2016 -07/2017 Company Sponsored Study at INSEAD MBA
4/2011 -9/2023 Bank of Japan(Financial System and Bank Examination Department, Information System Services Department, International Department, etc)
09/2010 Passded th bar exam
07/2017 INSEAD MBA
03/2008 Yokohama National University Law School
03/2005 The Univerity of Tokyo, Faculty of Economics
07/2025 Passed screening review for "NEDO Challenge: Quantum Computing - Solve Social Issues!" by the New Energy and Industrial Technology Development Organization (NEDO)
03/2025 Awarded Second Prize in Q-Quest 2024, a business contest under the Ministry of Education, Culture, Sports, Science and Technology (MEXT)'s "Quantum Leap Flagship Program (Q-LEAP)"
01/2024 Daiichi Tokyo Bar Association
09/2025 “Legal Strategies for Commercializing Deep Tech -Latest Issues in AI, Quantum, and Blockchain” Bsuiness+IT: Frontiers of Industry Opened by Deep Tech
07/2025 “Financial Law in the Quantum-Computing Era -Cybersecurity, National Security, and Practical Responses to Post-Quantum Cryptography” FinTech Journal: Digital Finance Forum 2025 Summer