LAWYER PROFILE
Atsushi Okada

Atsushi Okada

Asia-Pacific 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 2 practice areas

About

Provided by Mori Hamada

Practice Areas

Atsushi Okada is co-head of the firm’s IP, Data Security, Fintech, Healthcare and AI/IoT practice groups and regularly advises on cutting edge technology issues across industries. In addition to IP infringement litigation, licensing and product liability disputes, he has great expertise in privacy and global compliance with data protection laws in Japan, Europe, the U.S. and Asian countries.

Career

Background

The University of Tokyo (LL.B., 2001); Harvard Law School (LL.M., 2007); Weil, Gotshal & Manges LLP, Silicon Valley (2007-2008); Harvard University (Certificate in Applied Sciences 2008)

Major Activities

Lecturer at Rikkyo University, College of Law and Politics (Patent and Trademark Laws) (2010-2011); Visiting Professor of the Graduate School of Business, Aoyama Gakuin University (Copyright Law) (2011-); Lecturer for the Infringement Litigation Training Program for Patent Attorneys at the Japan Patent Attorneys Association (2015-); Member of Study Group on AI and Data Contract Guidelines, METI (concurrently serving as the chair of a working group for the study group) (2017-); Member of Board of Examiners, Industrial Property Council of Japan Patent Office (2021-); Member of the AI Strategy Council, Cabinet Office (2023-); Advisor to AI Governance Association (2023-); Director of Association for Countermeasures against Dark Patterns (2024-); Member of AI Strategy Council, Tokyo Metropolitan Government (2024-); Member of the Study Group on Data Utilization System of the Meeting on Digital Administrative and Fiscal Reform, Cabinet Secretariat (2024-)

Professional Memberships

admitted in Japan, 2002; New York, 2008

Chambers Review

Provided by Chambers

Chambers Asia & Pacific

Technology, Media, Telecoms (TMT) - Japan

Band 1
Band 1

Individual Editorial

Atsushi Okada frequently advises clients on a variety of TMT issues, notably matters concerning personal data transfer and compliance with data protection laws and, increasingly, AI.

Intellectual Property: Bengoshi - Japan

Band 3
Band 3

Individual Editorial

Atsushi Okada co-heads MHM's IP practice and offers strength in the areas of IP prosecution, enforcement and licensing work for clients from a range of sectors.

Strengths

Provided by Chambers

  • He has all the legal knowledge, analytical and communication skills to convey the conclusions to the client in very easy-to-understand terms.

    Technology, Media, Telecoms (TMT)Chambers Asia & Pacific
  • He provides in-depth analysis of international, cutting-edge and complex issues, including AI and data use and protection, and keen observations and visions in the context of public policymaking.

    Technology, Media, Telecoms (TMT)Chambers Asia & Pacific
  • He is a very good lawyer who understands our situation and always responds flexibly and quickly.

    Intellectual Property: BengoshiChambers Asia & Pacific
  • Atsushi Okada can respond carefully to a wide variety of matters and provide accurate advice.

    Intellectual Property: BengoshiChambers Asia & Pacific

Ranked Individuals at Mori Hamada (70)

Japan

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership