Takafumi Ochiai

Atsumi & Sakai - Japan



+81 3 5501 2361

Highly regarded


Bar admissions:




Practice areas:


Takafumi Ochiai is a partner of Atsumi & Sakai and a manager of the Firm’s Innovation Practice Group including the Fintech Team. He is a secretariat general of the Fintech Association of Japan; the Ministry of Economic Trade and Industry’s Committee to Discuss a Legal System for Blockchain; the Japan Bank Association’s research committee for the promotion of open API; and the Innovative Technology/Business Model Evaluation Committee for Regulatory Sandbox of the Cabinet Office.  He also is a member of the "Study Group for Ideal Approaches to a Certification Scheme Concerning Functions of Information Trust" of the Ministry of Internal Affairs and Communications, and is a member of the Working Group on the Revision of Criteria for Safety Measures of the Special Committee for Safety Measures, The Center for Financial Industry Information Systems (FISC).

  • Advise a major Japanese bank on an “information bank”, a new system for storing and usage of personal data based on guidelines issued by the Japanese government
  • Advised on the creation of a voluntary self-regulatory organisation in the cryptocurrency industry, including negotiation with Financial Services Agencies and related associations and companies
  • Examined interpretations at the time of determining detailed rules and regulations pursuant to the amended Banking Act, and was involved in the project of the Japanese Bankers Association and other associations to formulate a template of an API Utilisation Agreement
  • Advised major Japanese financial institutions and other stakeholders on the bank’s creation of distributed securities using blockchain which is related to STO
  • Advised on the securities firm’s business in relation to  exchange for cryptoassets, an agreement for providing securities API

  • Banking
  • Capital markets: Equity
  • Financial services regulatory
  • M&A
  • Structured finance/securitisation

  • Banking
  • Financial services
  • Government and public policy
  • Insurance
  • Tech and telecoms

  • Daini Tokyo Bar Association

  • Keio University, B.S., 2004