Ryo Ko

Hiroyuki Tanaka is a Partner of Mori Hamada & Matsumoto, practicing data, IP, IT, and AI law. He is the Adjunct project professor at Keio University Graduate School of Law and Member of the Cyber-Physical Sustainability Center of Keio University Global Research Institute He has extensive experience advising foreign clients on Japanese data protection law. He is also familiar with global data protection regulations, including GDPR and CCPA / CPRA and helps Japanese clients with global data...

Katsumi Shirai is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Project Finance and Development Practice. Katsumi, who practices law in Tokyo, Japan, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katsumi is held by other top lawyers in the same geographic and legal practice area.

Masatoshi Maruoka is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Masatoshi, who practices law in Tokyo, Japan, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Masatoshi is held by other top lawyers in the same geographic and legal practice area.

Fumiyo Doi is a top attorney recognized by Best Lawyers in the practice area(s) of FinTech Practice. Fumiyo, who practices law in Tokyo, Japan, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fumiyo is held by other top lawyers in the same geographic and legal practice area.

Chie Yakura is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and Litigation. Chie, who practices law in Tokyo, Japan, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Chie is held by other top lawyers in the same geographic and legal practice area.

Michiaki Hosoi is a top attorney recognized by Best Lawyers in the practice area(s) of Structured Finance Law. Michiaki, who practices law in Tokyo, Japan, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michiaki is held by other top lawyers in the same geographic and legal practice area.

Shuji Koyama is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law and Real Estate Law. Shuji, who practices law in Tokyo, Japan, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shuji is held by other top lawyers in the same geographic and legal practice area.

Ben Morris is a top attorney recognized by Best Lawyers in the practice area(s) of Private Equity, Private Funds and Venture Capital Law. Ben, who practices law in Tokyo, Japan, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ben is held by other top lawyers in the same geographic and legal practice area.

Partner at Chuo Sogo Law Office; on loan to the Insurance Business Division of the Supervisory Bureau of Financial Services Agency (FSA) in Japan as a fixed-term governmental official (2005-07); member of the "Working Group on the Provision of Insurance Products and Services” of the Financial System Council, FSA (2012-13); member of the “Safety Nets of Housing Warranty Insurance System” study group of the Ministry of Land, Infrastructure, Transport and Tourism (June 2017 - M...

Yukihiro Terazawa is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and International Business Transactions. Yukihiro, who practices law in Tokyo, Japan, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Yukihiro is held by other top lawyers in the same geographic and legal practice area.