Shinsuke Hiratsu

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...

Yoshiko Koizumi is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust / Competition Law, Corporate and Mergers and Acquisitions Law and Corporate Governance and Compliance Practice. Yoshiko, who practices law in Tokyo, Japan, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Yoshiko is held by other top lawyers in the same geographic and legal practice area.

Minako Otsuka is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice. Minako, 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 Minako is held by other top lawyers in the same geographic and legal practice area.

Masahito Fukuda is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice. Masahito, 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 Masahito is held by other top lawyers in the same geographic and legal practice area.

Michael C. Graffagna is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance and Development Practice. Michael C., 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 Michael C. is held by other top lawyers in the same geographic and legal practice area.

Ken Kiyota is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law. Ken, 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 Ken is held by other top lawyers in the same geographic and legal practice area.

Tsuyoshi Imai is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law and Private Equity, Private Funds and Venture Capital Law. Tsuyoshi, who practices law in Tokyo, Japan, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tsuyoshi is held by other top lawyers in the same geographic and legal practice area.

Takashi Tezuka is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Accounting Law and Tax Law. Takashi, who practices law in Tokyo, Japan, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Takashi is held by other top lawyers in the same geographic and legal practice area.

Takahiro Nonaka focuses his practice on government and internal investigations, including anti-corruption, antitrust, and various employees misconduct and data privacy issues. He also works on both cross-border dispute resolution and domestic general commercial litigation. Taka has represented multinational companies negotiating with government officials and other associated investigative agencies as well as mass media, conducting internal investigations and training, researching relevant reg...

Partner at Chuo Sogo Law Office; secondment at Supervisory Coordination Division, Supervisory Bureau, Financial Services Agency, Japan as a fixed-term government official (Jan. 2014 to Dec. 2015); registered as Foreign Lawyer in Singapore (Nov. 2012 to Oct. 2013); foreign Lawyer at Rodyk & Davidson LLP, Singapore (Nov. 2012 to Oct. 2013); visiting attorney at Barack Ferrazano Kirschbaum & Nagelberg LLP, Chicago/USA (Aug. 2012 to Sep. 2012).