Jun Mamiya’s practice is focused on transactional, corporate, finance and governance matters for major Japanese institutional clients, including the largest department store holding company and operator in Japan and Japan’s largest leasing company and highly diversified financial conglomerate.

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    • He specializes in domestic and international transactions including M&A, corporate restructuring, compliance, joint ventures, franchise, license and private equity, securities, lease and loan together with expertise in litigation and international arbitration. 
    • Prior to joining Squire Patton Boggs in 2014, he was a partner at two prominent Japanese law firms before forming his own firm, Mamiya Law Offices in 2008.

    Publications

    • "Legal Considerations in Proposed Systems" (in Japanese) published in a 2002 METI Research Report, and a 2002 Research Report on Inter-Systems Coordination for Administrative Procedures in Trade and Finance EDI.
    • "Considerations of the International Chamber of Commerce" (in Japanese), Chapter 9, ECOM Report (Rules and Promotion of Online Processes in Trade and Finance), 2000
    • "Online Trading" (in Japanese), Jurist, No.1183, Aug.1 and Aug. 15 Editions, Yuhikaku Publishing Co, Ltd. 2000
    • "International Conventions – Considerations for Drafting Rules of International Chamber of Commerce" (in Japanese) Chapter 4, ECOM Report, ("Systemic, Technical Issues in Implementation of Online Trade and Financial Processes"), 1999
    • "Operational Guidelines" (in Japanese), Chapter 3, ECOM Report (Guidelines for EDI Implementation in Trade and Finance), 1999
    • "Systemic Issues in New Market Trends - Due to International Transactions" 

    Education

    • Legal Training and Research Institute of the Supreme Court of Japan, 1988
    • Kyushu University, LL.B., 1983

    Admissions

    • Japan, 1988

    Languages

    • Japanese
    • English
    • Recommended in The Legal 500 Asia Pacific 2018 in Corporate and M&A - International firms and joint ventures, Japan
    • Recommended in The Legal 500 Asia Pacific 2017 in Corporate and M&A – International Firms and Joint Ventures, Japan.
    • Recommended as a Leading Individual in The Legal 500 Asia Pacific 2016 for Corporate and M&A – International Firms and Joint Ventures, Japan.
    • Recommended in The Legal 500 Asia Pacific 2018 in Corporate and M&A - International firms and joint ventures, Japan
    • Recommended in The Legal 500 Asia Pacific 2017 in Corporate and M&A – International Firms and Joint Ventures, Japan.
    • Recommended as a Leading Individual in The Legal 500 Asia Pacific 2016 for Corporate and M&A – International Firms and Joint Ventures, Japan.
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