Business Law Faculty Professors

  • Vicki L. Beyer
    University of Nebraska at Omaha (BA, 1980), University of Washington (MA, 1987), University of Washington School of Law (JD, 1990), Bond University (LL.M. 1994)


    Professor Beyer, a lawyer admitted in Washington state, worked as an in-house lawyer for multinational corporations for 17 years, specializing in labor/employment and corporate governance. Before that, she ran and taught in the Temple University Law School Program in Japan and also taught at Bond University. She has been a research scholar at the University of Tokyo and a part-time lecturer at Keio University, Meiji Gakuin University, Nagoya University and Sophia University. Professor Beyer joined our faculty in 2017.

  • Jody Chafee
    Dartmouth College (BA, 1985), University of Washington (MIS, 1988), University of Washington School of Law (JD, 1991)


    Professor Chafee has been a practicing attorney for 28 years with experience in international law firms and multinational corporations. Over the years, he has represented clients in widely disparate transactional contexts as well as in various types of litigation. For the last 16 years, He has led the Technology Group at Starbucks Corporation where his practice centered around the global management of software, data and telecommunication networks, cybersecurity and their privacy. For the past 19 years, he has been an adjunct faculty member at the University of Washington School of Law. Professor Chafee joined our faculty in 2021.

  • Yuriko Inoue
    University of Tokyo (BA, 1986), University of Tokyo (LLB, 1990)


    Professor Inoue taught at the University of Tokyo (1993-1995), Tsukuba University (1995-2002), and Kobe University (2002-2010), and was a Visiting Professor at the Institute of Information, Amsterdam University (2006, 2007-2008). Her area of research is intellectual property law. Professor Inoue has recently co-authored a book on information law and a casebook on intellectual property law. She is a member of a number of advisory councils, including the Council for Industrial Policy of the Ministry of Economy, Trade and Industry (METI). Professor Inoue joined our faculty in 2010.

  • Hiroya Nakakubo
    University of Tokyo (LLB, 1980); Harvard Law School (LLM, 1990)


    Professor Nakakubo has taught at Fukuoka University, Chiba University, and Kyushu University. He was a Visiting Scholar at University of Pennsylvania Law School (1989-1990), University of Washington Law School (1997), Cornell Law School (2010), and University of Glasgow (2013), and was a Visiting Professor at Johann Wolfgang Goethe University (1999). Professor Nakakubo has published widely on both Japan and the U.S. in his field of labor and employment law. He serves as a member of both Japan’s Labor Policy Council and its Central Minimum Wage Council. Professor Nakakubo joined our faculty in 2007.

  • Chihiro Nunoi
    Hitotsubashi University (LLB, 1979); Hitotsubashi University (MA, 1981)


    Professor Nunoi taught at Tokai University (1984-1998), and has been a Visiting Scholar at Bonn University (1986-1987) and Munich University (1993-1994) in Germany. His research broadly covers international and comparative commercial law, and he has published articles in English, German, and French, in addition to those in Japanese. Professor Nunoi’s recent work has a focus on Vietnam and Southeast Asia. He served as chief committee member of the JICA legislative cooperative project in China (2004-2009). Professor Nunoi joined our faculty in 1998.

  • Masao Yoshimura
    University of Tokyo (LLB, 1999)


    Professor Yoshimura taught at Yokohama National University (2002-2012). His area of research is tax law. Among his publications, he recently co-authored a book in Japanese entitled “Tax Law” and produced an article in English on “The Debt-Equity Conundrum” for Cahiers de Droit Fiscal International. Professor Yoshimura joined our faculty in 2012.

  • Naoto Ikegai
    (Associate Professor)
    Keio University (B.A., 2005); The University of Tokyo (M.A.S., 2007) (Ph.D., 2012).


    Associate Professor Ikegai is specialized in Information Law and Policy. He joined our faculty in 2021.

  • Kei Amemiya
    (Professor from Practice)

    Chuo University (LL.B. 1989); University of Michigan (LL.M. 1998)


    Professor Amemiya is a partner at SHIMADA HAMBA & OSAJIMA. He previously served as an investigator at the Japan Fair Trade Commission where he led its investigations and administrative hearings. His practice areas include antitrust/antimonopoly law, international business transactions, disputes/litigation, compliance, and internal investigations. He counsels clients on various competition and business issues in both Japan and the United States. He is well known for handling complex competition law matters, and is a frequent speaker on competition law issues both in Japan and abroad. Professor Amemiya joined our faculty in 2019.

  • Masakazu Iwakura
    (Professor from Practice)

    University of Tokyo (LLB, 1985); Harvard Law School (LLM, 1993)


    Professor Iwakura is a partner at the law firm of TMI Associates. He has practice experience at Debevoise & Plimpton (New York, 1993-1994) and Arnold & Porter (Washington DC, 1994-1995). He has twice been a Visiting Professor at Harvard Law School (2007, 2013). His field of expertise is Mergers & Acquisitions. In addition to a variety of publications in that field, Professor Iwakura currently serves as the Dean’s Leadership Council of Harvard Law School. Professor Iwakura joined our faculty in 2006 and is admitted to practice in Japan and New York.

  • Ryutarou Nakayama
    (Professor from Practice)

    University of Tokyo(LLB,1995); University of Tokyo Graduate Schools for Law and Politics (LLM,1997); New York University School of Law(LLM,2006)


    Professor Nakayama is a partner at the law firm of Nishimura & Asahi where he specializes in corporate law and M&A, competition law and African law. He also practiced in New York with Weil, Gotschal & Manges from 2004 to 2005. He has been an adjunct law professor at Chuo University and Seikei University and has published widely on various aspects of transactional law within his areas of expertise.

  • Takeshi Tsuru
    (Associate Professor from Practice)

    University of Tokyo (B.Sc., 2004); University of Tokyo (M.Sc., 2006); Munich Intellectual Property Law Center (LL.M. IP, 2016), Japan Patent Office (2009-2021).


    Associate Professor Tsuru is specialized in Intellectual Property and Patent Law. He joined our faculty in 2021.

Part-time Lecturers and Guest Speakers

The Business Law Department is honored to have a number of leading legal practitioners and scholars as part-time lecturers or guest speakers in its course offerings. In the Global Business Program, those individuals include:

  • Pieter S. de Ganon (Morrison & Foerster) – Legal Aspects of IP Strategy
  • Joel Greer (ZeLo Law Firm) – International Dispute Resolution
  • Wataru Higuchi (Anderson Mori & Tomotsune) – Current Issues in Financial Regulation
  • John Inge (Orrick) – Legal Aspects of Intellectual Property Strategy
  • Arshad Karim (Twitter) – International Contract Drafting
  • Peter Kilner (Clifford Chance) – International Contract Drafting
  • J. Alexander Lawrence (Morrison Foerster) – Legal Aspects of Intellectual Property Strategy
  • Joel Lee (Automation Anywhere) – International Contract Drafting
  • Uwani Martin (Natixis Japan Securities Co.,Ltd.) – Securities Law
  • Mitsuo Matsushita (Nagashima Ohno & Tsunematsu) – International Comparative Competition Law
  • Mork Murdock (Squire Patton Boggs) – Mergers and Acquisitions
  • Takahiro Nonaka (DLA Piper) – International Dispute Resolution
  • Dan Rosen (Chuo University) – International Entertainment Law, American Business Law
  • Yuriko Sagara (Nakamura Law & Patent Office) – Legal Aspects of Intellectual Property Strategy
  • John Y. Sasaki (JSV Foreign Law Office) – Start-Up Law and Practice: The Silicon Valley Model
  • Allan Smith (RGA Reinsurance Co.) – International Comparative Competition Law
  • Yoshihiro Takatori (Orrick) – Comparative Competition Law
  • Stan Yukevich (Morrison & Foerster) – Mergers and Acquisitions