• TEL : +81-3-3221-2400
  • FAX : +81-3-3265-3860
  • E-mail : michael.mroczek@nozomisogo.gr.jp

Michael Mroczek is a Swiss lawyer practicing law in Tokyo, Japan. He is a foreign law partner at Nozomi Sogo and an expert in international arbitration in Japan. As a Swiss attorney, admitted to practice law in Switzerland (2008), Michael has been registered as a foreign lawyer (gaikokuho-jimu-bengoshi) in Japan with the Tokyo Bar Association (2014) and registered as an EU lawyer with the Warsaw Bar Association (Poland, 2013). With significant expertise in international arbitration, Michael not only represents parties in arbitration proceedings, but also acts as an arbitrator. His contributions to the field have also led him to lecture on international arbitration at the University of Tokyo Law School, shaping the future leaders in law. Outside of his arbitration responsibilities, Michael's multifaceted career involves serving as a director of the board for various companies in the sectors of technology, fashion, and finance in and outside of Japan. He is also the president of the European Business Council in Japan (EBC), reinforcing economic relations between Europe and Japan.
*Not engaged in a Gaikokuho Kyodo Jigyo.

Practice Areas

  • ・Dispiute Resolution: International Arbitration, Litigation and Mediation
      - representing clients before arbitral tribunal to acting as an arbitrator in ICC, SAC (Swiss Arbitration Center) and DIS
       (German Arbitration Institute) arbitrations.
  • ・Corporate Law: Incorporations, M&A, Employment Law
  • ・International Estate Planning and Inheritance: Wills, Trusts and Estate Planning
  • ・FinTech


  • ・Nozomi Sogo, October 2022 – present
    Foreign Law Partner

  • ・Okuno & Partners, July 2013 – September 2022
    Foreign Law Partner

  • ・European Business Council in Japan (EBC), February 2019 – present

  • ・Swiss Chamber of Commerce and Industry in Japan (SCCIJ), February 2016 – January 2019

  • ・Temple University Beasley School of Law, May 2017 – present
    Adjunct Professor

  • ・The University of Tokyo, Law School, February 2016 – present

  • ・Rikkyo University, April 2015 – September 2019

  • ・Stach Rechtsanwälte AG, July 2013 – July 2015
  • ・Stach Rechtsanwälte AG, March 2009 – July 2013

  • ・Tax and Expropriation Court, Liestal (Switzerland), 2006
    Court Clerk

  • Education

    ・LL.M. in US Law, Temple University Beasley School of Law, Philadelphia, USA – Tokyo, Japan, 2013

  • ・Bar Exam, Cantonal Court of the Canton of Basel-Country, 2008

  • ・LL.M., University of Basel, Switzerland, 2005

  • ・LL.B, University of Basel, Switzerland, 2002

  • Publications, Presentations, Seminars, Speeches, and Media

    [Publication and Presentation]

  • ・How to Insure Permissibility of Advocates & Arbitrators chosen for Arbitration in Japan, Chartered Institute of Arbitrators, Tokyo, February 2018

  • ・The Termination of Agency Contracts and Distributorship Contracts in Switzerland, Japanese Council on International Trade Law, Tokyo, December 2017

  • ・Selection of Arbitrators, YJAA-AFIA, Tokyo, September 2017

  • ・Law and Business in Japan (Executive M.B.L. – HSG program), Waseda University, Tokyo, August 2017

  • ・Starting your business in Japan – selected legal aspects and practical advices, Tokyo Metropolitan Government, Tokyo, April 2016

  • ・International Business Dispute Resolution, the University of Tokyo, Tokyo, July 2015

  • ・Swiss Constitutional Law, Keio Law School, Tokyo, May 2015

  • ・Procedures for Registering Foreign Affiliated Companies, Tokyo Metropolitan Government, Tokyo, February 2015

  • ・Alternative Dispute Resolution with a particular focus on international arbitration, Tokyo Bar Association, Tokyo, November 2014

  • ・Five practical issues every company should know about international arbitration, Swiss Chamber of Commerce and Industry in Japan, Osaka, October 2014

  • ・Five practical issues every company should know about international arbitration, Swiss Chamber of Commerce and Industry in Japan, Osaka, October 2014

  • ・Five practical issues every company should know about international arbitration, Swiss Chamber of Commerce and Industry in Japan, Tokyo, June 2014

  • ・International Commercial Arbitration in Switzerland, Nagoya University, December 2013

  • ・Arbitration in International Business Transactions, International Fashion Center Bldg., Tokyo, November 2013

  • ・Swiss Constitutional Law, Keio Law School, Tokyo, May 2013

  • ・Purchase of Real Estates in Switzerland by Foreigners, Polish Business Club, Warsaw, February 2011

  • [Seminars, Speeches, and Media]

  • ・EBC Chairman M. Mroczek hands over to PM Abe this year’s recommendations from the EU-Japan Business Round Table (European Business Council, Tokyo, September 2019)

  • ・High hopes for EPA-related areas (The Japan Times, May 2019)

  • ・Dealing with disputes under the EPA (Eurobiz Japan, August 2019)

  • ・Kokusai Chusai Handan no Ireino Koukai (Business Law Journal No.127, October 2018)

  • ・Thoughts on necessary change in Japan (Global Arbitration Review (GAR), May 2018)

  • ・ICC award gives rare glimpse into $7bn San Onofre dispute (Arbitration News – Publication of the International Bar Association Legal Practice Division, Vol.23, No.1, February 2018)

  • ・Who’s who in the World of Business in Japan (The Japan Times, November 2017)

  • ・How Deep is the Pool of Arbitration Specialists in Japan? (LexisNexis, Japan Lawyers Guide 2014/15)

  • ・Arbitration in Hong Kong – Is Hong Kong the most convenient seat for arbitration in Asia for Japanese Companies? (in Japanese), (The Lawyers, September 2014)


  • English, German, Polish, Italian, and French

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