Hibiya Sogo Law Office

Competition/Antitrust Department

Japan
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What the team is known for Top-league boutique firm specialising in antitrust and competition matters. Garners praise for its ability to handle JFTC investigations into cartel and unilateral conduct, as well as follow-on civil litigation as defence counsel to Japanese corporates and individual defendants.

Strengths Sources single out the practice as an "amazing firm" and "specialist competition boutique," which is known in the market to be "experienced in antitrust," and "good at litigation," and which demonstrates "strength in investigations."

Notable practitioners

Sources describe
Toshiaki Tada
as "very capable and knowledgeable" and "definitely a specialist practitioner" who is "able to have high-level discussions." He is particularly well versed in contentious instructions and his practice involves counselling clients under investigation by a range of antitrust authorities.


Tsutomu Nakato
is widely acknowledged to be an experienced practitioner of antitrust law. His practice focuses on investigations into anti-competitive conduct, such as cartels, including bid-rigging and price-fixing, and unilateral behaviour, such as abuse of superior bargaining position.