Maxwell (Mac) A. Fox - McDermott Will & Emery


Maxwell (Mac) A. Fox focuses his practice on intellectual property infringement litigation, licensing and counseling matters. Based in Tokyo, Japan, Mac is a practicing foreign registered lawyer (Gaiben) advising Japanese organizations in multipatent cases involving telecommunications and network security technology, litigations involving technology relating to chipsets used in mobile handsets, and patent infringement litigation involving technology used in LCD and DLP projectors. He also represents branded pharmaceutical companies in enforcing their patent rights through ANDA litigation under the Hatch-Waxman Act.

Click here to read Mac’s full biography in Japanese.

One of the few Japanese speaking experienced US litigators, he has experience before the International Trade Commission and Federal Circuit. Mac represents clients in an array of industries, including electronic manufacturers to life sciences. He represents clients in commercial disputes, as well as in litigation related to cartel investigations.

Mac frequently speaks on IP law and has lectured to the Japan Patent Attorneys Association and to the Chung Hwa Research Institute in Taiwan. He has also guest lectured as part of an IP law course at Keio University.

While in law school, Mac served as a senior articles editor and executive board member of the Berkeley Journal of International Law. He was also an associate editor for the Berkeley Technology Law Journal.


  • Defended Ricoh USA, Inc. in a series of patent infringement cases in the Eastern District of Pennsylvania involving allegations of infringement of 19 separate US patents on technology related to office and production printers*
  • Defended NEC Corporation in five separate cases brought by WSOU Investments, LLC in the Western District of Texas, alleging infringement of patents related to networking, software, and wireless communications technologies*
  • Represented NEC Corporation in a litigation brought by Far North Patents, LLC in the Eastern District of Texas, in which the plaintiff is accusing NEC’s telecommunications network management systems of infringing ten patents covering an array of networking related technologies*

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  • Chambers, Intellectual Property: International – Japan
    • Global, 2009 to present
    • Asia-Pacific, 2010 to present

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  • Daini Tokyo Bar Association, member
  • American Bar Association, member
  • American Intellectual Property Law Association, member
  • Tokyo IP American Inn of Court, member


University of California, Berkeley, Boalt Hall School of Law, JD, 1998
Dartmouth College, AB, History and Asian Studies, cum laude, 1994

Japan (as a Gaikokuho Jimu Bengoshi [licensed foreign law specialist])

US Supreme Court
US Court of Appeals for the Federal Circuit
US District Court for the Eastern District of California

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