Mr. Masuda has represented clients in litigation cases in such areas as financial transaction, labor relations, intellectual property, real estate, administrative cases, and domestic matters. He regularly advises corporate and individual clients on general corporate matters, commercial contracts, and other civil and criminal law matters.

Mr. Masuda was admitted to Bar of Japan in 2022, and joined Ishii Law Office in 2023. He received an LL.B. degree from The University of Tokyo in 2019. Mr. Masuda is a member of the Daini Tokyo Bar Associations and the Japan Federation of Bar Asspciations.