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Maxwell A. Fox (Mac)


(T) +81.3.6800.1876
(F) +81.3.5401.2725


  • University of California, Berkeley, Boalt Hall School of Law (J.D. 1998; Senior Articles Editor, Executive Board Member, Berkeley Journal of International Law; Associate Editor, Berkeley Technology Law Journal; Recipient, Japan Foundation Fellowship); Dartmouth College (A.B. cum laude 1994)

Bar Admissions

  • Japan (as a Gaikokuho Jimu Bengoshi [licensed foreign law specialist]), California, U.S. Supreme Court, U.S. Court of Appeals for the Federal Circuit, and U.S. District Courts for the Eastern, Northern, Southern, and Central Districts of California

One of the few Japanese speaking U.S. litigators based in Japan, Mac Fox handles intellectual property infringement litigation, licensing, and counseling matters and represents clients ranging from electronics manufacturers to life sciences companies. He practiced in Los Angeles for nearly a decade before relocating to Tokyo in 2006. Mac has litigated cases throughout the U.S. and has experience before the International Trade Commission and Federal Circuit. He also has represented clients in commercial disputes and has experience in litigation related to cartel investigations.

Mac's recent experience includes defending Japanese companies 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 has represented branded pharmaceutical companies in enforcing their patent rights through ANDA litigation under the Hatch-Waxman Act.

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 guest lectured as part of an IP law course at Keio University. In 2015, he was invited to participate in a mock oral argument before the chief judge of the Federal Circuit Court of Appeals at a symposium in Tokyo celebrating the 10th anniversary of the creation of Japan's Intellectual Property High Court.

He is a member of the Daini Tokyo Bar Association, American Bar Association, and American Intellectual Property Law Association and has served as a master of the Tokyo IP American Inn of Court.

Honors & Distinctions

  • Chambers Asia/Global: "a wonderful lawyer who knows what he's doing and is very committed to what his clients ask of him," "entrepreneurial and a sharp litigator," recognized for his "fluent Japanese, high responsiveness and amazing practicality"

    Listed numerous times in:

    Best Lawyers in Japan

    Managing IP: "IP Star"

    IAM Patent 1000 — The World's Leading Patent Practitioners

    Legal 500 Asia Pacific


Maxwell Fox Mac