Masa is a partner at Mori Hamada & Matsumoto. He is known as a fintech guru in Japan's fintech space, representing a variety of fintech startups ranging from payment, cryptocurrency exchange, mobile broker to insurtech, as well as a chairman of non-profit fintech professional advocate group ""Finovators"".
Masa is also committed to a regulatory transformation that fits to a ""platform and data"" era as a member of the Government's various councils, including Regulatory Sandbox Committee, Regulatory Reform Committee and Digital Market Competition Committee. He is admitted to the Bar in Japan and New York, and qualified as patent lawyer in Japan. He holds LL.M in Columbia Law School and LL.B in University of Tokyo.