Ryutaro Nakayama renders a broad-range of M&A-related advice to clients, including advice relating to corporate law, securities law, merger control, tax law and various regulations specific to the relevant industries. He recently represented clients in high profile M&A cases, such as Tokyo Electron in its merger with Applied Materials, and Nippon Steel in its merger with Sumitomo Metal.

Ryutaro Nakayama is also known as a leading competition law lawyer. He has established a unique practice with interconnections between his abundant experience in M&A and corporate practice and his merger regulation expertise. He has successfully obtained clearance from the relevant competition authority even where the resulting combined market share exceeded 50% in the relevant markets.

He has also handled cross border cartel cases for Japanese clients by coordinating with foreign law firms in various jurisdictions.

Ryutaro Nakayama plays a leading role in our firm’s Africa Practice Group and is recognized as one of the leading lawyers in this field.

He has been selected as a leading lawyer in the Corporate/M&A and/or competition law fields by various publications including Chambers Global and Asia Pacific, Best Lawyers and Who’s Who Legal: Japan.

Recent activities


Getting the Deal Through 2019 - Shareholder Activism & Engagement: Japan



Most innovative Japanese law firm: Financial Times Asia-Pacific Innovative Lawyer Awards 2019



Top attorneys in Japan: Best Lawyers - 2020 edition



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

2008 - 2009
Lecturer, Seikei University Law School
2007 -
Lecturer, Chuo Law School
2004 - 2005
Weil, Gotshal & Manges LLP, New York