Yasuhiro Sato

For more than 10 years, Yasu Sato has focused his practice on intellectual property disputes. His practice involves patent infringement litigation, trade secret misappropriation, copyright infringement litigation and unfair competition and trademark infringement cases. He also counsels clients in a wide range of licensing negotiations with a special emphasis on cloud computing services and data protection. He worked for Sughrue Mion PLLC in Washington, D.C., in 2013 and Kenyon & Kenyon LLP (currently, Hunton Andrews Kurth LLP) in New York in 2014, where his practice focused on patent infringement litigation in federal court.

Yasu received his LL.B. from the University of Tokyo Faculty of Law in 2006 and J.D. from the University of Tokyo Graduate Schools for Law and Politics. He earned LL.M. (with highest honors) from the Indiana University Maurer School of Law in 2013. He is admitted to practice in Japan and New York.

Professional Qualification & Activities

Admitted in Japan, 2009; New York, 2014
Member, Daini Tokyo Bar Association
Member, New York State Bar Association

Education & Prior Experience

The University of Tokyo (LL.B.), 2006
The University of Tokyo (J.D.), 2008
Joined STW & Partners (currently, SHIOMIZAKA), January 2010
Indiana University Maurer School of Law, (LL.M. (highest honors)), 2013
Sughrue Mion, PLLC, Washington, D.C., 2013-2014
Kenyon & Kenyon LLP (currently, Hunton Andrews Kurth LLP), New York, 2014
Returned to STW & Partners (currently, SHIOMIZAKA), July 2014
Established Sueyoshi & Sato, 2020


“‘Malice’ or ‘gross negligence’ in the context of acquisition of trade secret,” 2022
“Intellectual Property in the Corporate Governance Code,” 2021
“What to Know about Trade Marks When Entering the Japanese Market,” Trade Marks 2021: Trends and Developments, Chambers and Partners, 2021
“Annotation of the Convention for the Unification of Certain Rules for International Carriage by Air,” Yuhikaku, 2020 (Co-Author)
“Copyright infringement-music lesson or public performance?,” IAM Innovation & Invention Yearbook 2021: Building IP value in the 21st century, Law Business Research – IP Division, 2020
“Interpretation of Patent Claims Doctrine of Equivalents,” Japanese Patent Law: Cases and Comments, Wolters Kluwer, 2019 (Co-Author)*
“Copyright 2019,” Global Practice Guide, Chambers and Partners, 2019 (Co-Author)*
“Practical Points on Mergers and Patent Rights and License Agreements,” 2017
“Fundamentals of Patent Licensing,” 2017
“Patent Infringement Analysis,” 2016
“Attorney-Client Privilege Laws Surrounding Communications with Non-Bengoshi or Non-Benrishi Japanese Employees,” 2016 (Co-Author)
“Key Points in Pursuing Civil and Criminal Liabilities (Highlight: Evaluating the Revised Unfair Competition Prevention Act and the Concept of Trade Secret Protection),” 2016
“Trade secret law: guidelines revised,” IAM Yearbook 2016, Globe Business Media Group, 2015 (Co-Author)*
“Trade Secrets in Japan: Now Ready for Criminal Protection,” 2015
“Fundamental Aspects of Business Law Practice-IP Law,” 2011
“Fundamental Aspects of Business Law Practice-IP Law,” 2010
“Interpretation of Product-by-Process Claims,” 2008

English publications. All other publications are written in Japanese and the English titles listed above have been translated from the Japanese originals only for reference purposes.