Image: Sachiko Taniguchi

Sachiko Taniguchi

Associate, Litigation Department

New York

Phone: 1(212) 318-6713
Fax: 1(212) 230-7713


Phone: 81-3-6229-6060
Fax: 81-3-6229-7060


Sachiko Taniguchi is a senior associate based in New York.  Ms. Taniguchi is a member of the firm’s Complex Litigation and Arbitration practice group.  Her practice focuses on representing multi-national clients in U.S. federal and state courts and domestic and international arbitration proceedings, in high-stakes commercial disputes across various industries ranging from construction machinery, healthcare, pharmaceuticals, biotechnology, and commercial real estate.

Ms. Taniguchi is also uniquely qualified to represent Japanese clients in cross-border disputes, because of her strong cultural fluency, bilingual skills, native Japanese background, and training as a U.S. litigator and international arbitration practitioner.  With Ms. Taniguchi, Japanese clients can overcome language and cultural barriers, and work directly with the firm on all phases of litigation, both on strategies and execution.  She has represented leading companies throughout the world, and has handled all phases of litigation with extensive trial experience.


  • The Legal 500 USA, International Arbitration (2022)
  • Recognized as Ones to Watch in Japan, Litigation – The Best Lawyers in Japan (2022, 2023)


  • The University of Chicago Law School, LL.M., 2017
  • The Legal Research and Training Institute of the Supreme Court of Japan, 2013
  • Waseda University Law School, J.D., 2011
  • Waseda University School of International Liberal Studies, B.A., 2007 (First in Class of 2008; Graduation in 3.5 Years)
  • Grinnell College, Exchange Program, 2005-2006


  • Representing a U.S. real estate company in confidential arbitration proceedings involving a commercial real estate dispute.
  • Represented Mitsubishi Tanabe in an ICC arbitration involving a royalty payment dispute across multiple jurisdictions around the world and obtained a final award worth over US$3 billion, rejecting every challenge to the IP license agreement at issue as well as $22 million in costs.
  • Represented a Japanese pharmaceutical company in US state court and international arbitration proceedings involving royalty payments around the world.
  • Represented a construction machinery company in connection with a proceeding involving numerous disputed issues under multiple contracts.
  • Represented a steel company in an international investigation in connection with a U.S. government initiative.

    Engagement & Publications



    • Member of Daini Tokyo Bar Association

    Practice Areas


    Complex Litigation and Arbitration

    International Arbitration

    Investigations and White Collar Defense

    Life Sciences and Healthcare





    District of Columbia Bar

    New York Bar



    The University of Chicago, LL.M. 2017

    Waseda University, J.D. 2011

    Waseda University, B.A. 2007

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