Mori Hamada & Matsumoto

Masakazu Masujima

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Practice Areas

Fintech, mergers and acquisitions, regulatory, private equity, venture financing, insurance.


Wilson Sonsini Goodrich & Rosati P.C, California (2006-2007), Deputy Director at Insurance Business Division and Banks Division I of the Supervisory Bureau, Financial Services Agency of Japan (2010-2012), Research fellow at CSIS-Nikkei Virtual ThinkTank (2011-2013)

Professional Memberships

Admitted in Japan, 2001; State of New York, 2007. member of American Bar Association, New York Bar Association and Daini-Tokyo Bar Association; council member for Risk Money Provision Task Force at METI(2013-)


"Cybersecurity Case Studies Measures to Counter Diversifying Cyber Threats" Keidanren Syuppan 2020 (Co-Author); "Cryptoassets Law" Chuokeizai-sha, Inc. 2020 (Co-Author); "Corporate Venture Capital (CVC) - New Management Strategies to Succeed in Global Business" DIAMOND,Inc. 2017 (Editorial Supervisor); "Laws on Fintech" Nikkei Business Publications, Inc. 2017 (Co-Author); All about Limited Liability Corporations (Co-author); Startup Innovators (


The University of Tokyo (LL.B. 2000), Columbia Law School (LL.M. 2006)