Yukako Wagatsuma

Yukako Wagatsuma

Yukako Wagatsuma handles corporate, M&A and intellectual property-related matters. She represents both Japanese and foreign companies in cross-border M&A, strategic business alliance and joint venture projects. She has particularly deep experience in the pharmaceuticals and medical device industries. She also has extensive experience in domestic and international corporate reorganization projects.
After working as a partner at leading Japanese and U.S. law firms as well as at PwC Legal Japan, she joined Isshiki & Partners as a partner in July 2022.
Since June 2022, she has served as outside auditor of Odakyu Electric Railway Co., Ltd.


University of Tokyo (B.A.)
New York University School of Law (LL.M. in Corporate)


Admitted to Japan, Dai-Ichi Tokyo Bar Association
Admitted to New York State Bar Association


“Issues in Structuring Cross-Border M&A,” Accounting Information Magazine (October 2016, Chuo Keizai).
“Round Table Discussion: Reducing Legal Costs in Cross-Border Litigation,” Business Law Journal (March 2010, LexisNexis).
“Potential Utilization of Unfair Competition Law,” Business Law Journal (November 2008, Chuo Keizai) (co-author).


“Legal Responsibilities of Corporate Directors and Roles of Various Advisors in M&A Transactions,” PwC Seminar, 2019.
“Investment in China and Southeast Asia,” PwC Seminar, 2019.
“Preparation for Amendments to Companies Act: How the Rules regarding Shareholders’ Meetings and Directors Will Change,” PwC Aarata LLC’s Roundtable Discussion, 2019.
“Legal Environment Surrounding M&A in Japan,” Japan Business Seminar for Foreign Companies, 2010.