Ryoko Matsumoto
Recognized in Ones to Watch since 2026 About Ryoko Matsumoto
Ryoko Matsumoto is a lawyer based in Tokyo, JP and has been recognized in Best Lawyers: Ones to Watch in Japan™ since 2026. Ryoko Matsumoto is recognized in the following practice area:
- Tokyo, Japan
- Privacy and Data Security Law
Current Firm: Mori Hamada
Location: Tokyo, JP
Nearby Lawyers
Kenji Taneda is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law. Kenji, who practices law in Tokyo, Japan, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kenji is held by other top lawyers in the same geographic and legal practice area.
Dale E. Caldwell is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Project Finance and Development Practice. Dale E., who practices law in Tokyo, Japan, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dale E. is held by other top lawyers in the same geographic and legal practice area.
Hiroo Atsumi is a top attorney recognized by Best Lawyers in the practice area(s) of Asset Finance Law, Banking and Finance Law, Capital Markets Law, Project Finance and Development Practice, Real Estate Law and Structured Finance Law. Hiroo, who practices law in Tokyo, Japan, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Hiroo is held by other top lawyers in the same geographic and legal practice area.
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).
Rony P. Gerrits is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust / Competition Law. Rony P., who practices law in Tokyo, Japan, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rony P. is held by other top lawyers in the same geographic and legal practice area.
Nobuhiko Shimose is a top attorney recognized by Best Lawyers in the practice area(s) of Investment and Investment Funds. Nobuhiko, who practices law in Tokyo, Japan, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nobuhiko 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...
Max Olson is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense, Intellectual Property Law, International Arbitration and Litigation. Max, 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 Max is held by other top lawyers in the same geographic and legal practice area.
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
Common-Law Marriage in Indiana: Are You Legally Protected?
by Laurie Villanueva
Understanding cohabitation rights and common-law marriage recognition in Indiana.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
