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中山 龍太郎
中山 龍太郎


  • Partner
  • Tokyo
  • Managing Partner

Ryutaro Nakayama is the Managing Partner of Nishimura & Asahi. He has advised on a number of landmark transactions, utilizing his unique combination of corporate and antitrust skills.

Ryutaro Nakayama specializes in General Corporate and M&A work, and advises clients on a broad range of issues and transactions relating to M&A, Japanese corporate, securities, tax, and merger control laws, and regulations specific to various industries. He is a leading lawyer in the field of competition law in Japan, and possesses a unique set of skills and experience, drawn from his extensive experience handling M&A, corporate, and merger control cases and transactions. He has obtained transaction clearances from competition authorities even where the resulting combined market share exceeded 50% in the relevant markets. He has led Nishimura & Asahi’s Africa Practice Team since its formation in 2014. He has established a strong network of connections with Japanese entrepreneurs and businesses that target the African continent, as well as with leading law firms based in Africa. He has been named a leading lawyer in the fields of Corporate/M&A and/or competition law by various publications, including Chambers Global, Chambers Asia-Pacific, and The Nikkei’s annual rankings of “Most Successful Lawyers.” He was appointed the Managing Partner of Nishimura & Asahi in April 2021.

Representative Work

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New York University School of Law (LL.M.)
University of Tokyo Graduate Schools for Law and Politics (LL.M.)
The University of Tokyo (LL.B.)

Professional Experience

Managing Partner 
Professor from Practice, The Business Law Department of Hitotsubashi University Graduate School of Law  
Lecturer, Seikei University Law School 
Lecturer, Chuo Law School 
Weil, Gotshal & Manges LLP, New York