Masayuki Yamanouchi

Masayuki Yamanouchi specializes in intellectual property with a particular focus on life sciences and pharmaceuticals, advising on matters where patent law and regulatory frameworks intersect—such as patent linkage systems—and handling IP disputes (litigation, arbitration, trials, customs seizures), IP transactions and M&A (licensing, IP due diligence), trade secrets and know how, copyright and entertainment, as well as technology matters including data, IT, telecommunications and AI related regulation.

Admitted in Japan (2008), New York (2014).

Dai‑ni Tokyo Bar Association (Japan), 2008.

"Introduction to Japanese Business Law & Practice" (6th ed.) (contributor), 2024; "Ensuring success under the trademark enforcement framework" (article), 2024.

Keio University (BSc, 2002); Keio University Graduate School (MSc, 2004); University of Tokyo Law School (J.D., 2007); Stanford Law School (LL.M., 2013).