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Atsumi & Sakai
Fumiyo Doi
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Fumiyo Doi

Partner

Main Practices
Fintech / General Corporate Legal Affairs / Cashless Payments and E-money / Advertising and Marketing / M&A, Corporate Reorganization, and Joint Ventures / IT, Telecommunications, and Radio / Data Protection, Data Leaks, and Cybersecurity / Pharmaceuticals, Cosmetics, and Medical Devices / Medical IP and Licensing / Food, Beverages, and Alcohol / Cartels, Bid Rigging, and Leniency / Vertical Restraints and Abuse of Superior Bargaining Position / Subcontracting and Misrepresentations / General Civil Litigation / Intellectual Property Transactions / Unfair Competition and Protection of Business Data / IT Systems and Services / Personal Information, Privacy/Big Data / Digital Platforms / DX Governance, E-Contracts, and Service Digitalization / Data Utilization
Languages
Japanese / English
Office
Tokyo
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Overview

Publications & Seminars

Awards

Admitted

Japan (2006) and New York (2013)

Bar Association

Dai-ichi Tokyo Bar Association

Education

Kyoto University (LL.B., 2003)
The Legal Training and Research Institute of the Supreme Court of Japan
University of California, Berkeley (LL.M., 2012)

Background

Nagashima Ohno & Tsunematsu (October 2006-October 2016)
Secondment with Sapporo Holdings Limited (August 2012-September 2014)
Secondment with the Financial Services Agency (FSA) (September 2014-June 2016)
Amazon Japan G.K. (October 2016-March 2022)
GE Healthcare Japan (May 2022-January 2023)
Assistant Investigator of the Third-party Committee of the Tokyo Women’s Medical University (July 2024)
Tokyo Financial Award, Mentor, Financial Innovation Category, Tokyo Metropolitan Government (October 2024-)

Outside Director, General Hanamaki Hospital (June 2025-)

Member

The Copyright Law Association of Japan
The Information Network Law Association
Intellectual Property Lawyers Network Japan (IPLNET)

Publications

  • In-Depth:International Investigations, Japan Chapter, Lexology (July, 2025) [Co-author]
  • Panoramic - Pharma & Medical Device Regulation 2025, Japan chapter, Law Business Research Ltd. (2024) [Co-author]
  • Getting the Deal Through - Pharma & Medical Device Regulation 2024, Japan Chapter, Law Business Research Ltd. (2023) [Co-author]
  • “The Summary and Future Outlook of Public Notice concerning the Transactions subject to the Regulations on the Electronic Trading Platform,” Weekly Financial Affairs, September 14, 2015 Issue (2015) [Co-author]

Web Articles

Newsletters