Masumi Oyabu is an associate of Morrison Foerster Law Offices.

Masumi received her LL.B. from Waseda University Faculty of Law in 2015, her J.D. from Keio University Law School in 2017, and completed her training at the Legal Training and Research Institute of the Supreme Court of Japan in December 2018 (71st trainee). Masumi is a bengoshi admitted to practice in Japan and a member of the Dai-Ichi Tokyo Bar Association.