Language switching
  • Representative lawyer

    Representative Attorney

    MIMURA Ryoichi

    MIMURA Ryoichi

    MIMURA Ryoichi

    TEL: 03-6868-3050
    FAX: 03-6747-6862
    mimura.ryoichi [at]
    *Please replace [at] above with @

    Dai-ichi Tokyo Bar Association
    Dai-ichi Tokyo Bar Association


    Education / Work

    • 1977 Graduated from the Faculty of Law, University of Tokyo
    • 1979-1989 Assistant judge of the Tokyo District Court, attached to the General Civil Affairs Bureau of the Supreme Court, assistant judge of the Asahikawa District Family Court
    • 1981-1983 Study abroad at The University of Cologne, Federal Republic of Germany
    • 1989-1993 Tokyo District Court Judge [1989-1991 Intellectual Property Division]
    • 1993-1998 Supreme Court Investigator [Intellectual property cases, general civil cases]
    • 1998-2005 Tokyo District Court Judge [Intellectual Property Division Chief Judge]
    • 2005-2008 Intellectual Property High Court Judge
    • 2008-2009 Tokyo High Court Judge
    • 2009 Registered with Daiichi Tokyo Bar Association
    • 2009-2019 Partner, Nagashima Ohno & Tsunematsu Law Office
    • 2010-2023 Visiting Professor, Waseda University Graduate School of Law
    • 2019- Representative, Mimura Komatsu Law Office

    Affiliation/position, etc.

    • Member of Private International Law Subcommittee, Legislative Council, Ministry of Justice (2000-2001)
    • Temporary member of the Legislative Council (International Jurisdiction System Subcommittee) (2001-2005)
    • Patent Office/Patent Attorney Examination Committee member (1999-2000)
    • Ministry of Economy, Trade and Industry, Temporary Member of the Industrial Structure Council (Intellectual Property Policy Subcommittee, Unfair Competition Prevention Subcommittee) (2002-2003, 2004-2005)
    • Ministry of Education, Culture, Sports, Science and Technology, Cultural Council Expert Committee Member (Copyright Subcommittee) (2003-2004)
    • Director of Copyright Law Society (May 2010-)
    • Intellectual Property Achievement Award (Minister of Economy, Trade and Industry Award) (2018)


    • “Legal Consultation on Patents and Utility Models I and II” (co-author) Seirin Shoin
    • Copyright property of architecture [Grenier-Dine case: Court of Appeal] “6 Selected Copyright Cases, 242th Edition” (Special Edition Jurist No. XNUMX)
    • “Annual Report on Intellectual Property Law 2018-2019” (co-editor) Nippon Hyoronsha
    • Calculation of damages due to patent infringement - Focusing on Article 102, Paragraph 1 of the Patent Law - Separate Patent No. 18 (Volume 70, No. 14)
    • “Trademark Legal Consultation I” (co-author) Seirin Shoin
    • “The current state of evidence collection and the future of civil litigation” (lecture transcript/co-author) Yuyusha
    • Regarding evidence collection procedures in intellectual property disputes (co-author) Jurist November 2016 issue (No. 11)
    • “Legal Consultation on Unfair Competition I/II” (co-author) Seirin Shoin
    • "Intellectual Property, Computers, and Law - Collection of rare commemorative papers by Professor Toyohiro Nomura" (co-author) Shoji Homu
    • Challenges in evidence collection procedures in intellectual property infringement lawsuits Freedom and Justice February 2016, 2 issue (Vol.15 No.67)
    • And many others