Naoki Idei is of counsel at Kojima Law Offices. He focuses on dispute resolution, including cross-border litigation, arbitration, and mediation. Mr. Idei serves as a Managing Director of the Japan Association of Arbitrators and has held leadership roles with the Japan Federation of Bar Associations, including as Secretary General. He is admitted to practice in Japan and New York. 

Publications

Enforcement of Judgments Law Guide

Co-author of the Japan chapter in the Enforcement of Judgments Law Guide , published 12 May 2026 , alongside Naoki Takahashi , Darcy Kishida , Abbey Schultz and Chikara Mochida .