Tatsuo Yamashima is a partner at Atsumi & Sakai, working primarily in the field of antitrust and competition law, government regulations, employment and human resources and other corporate legal affairs. He has assisted and represented many Japanese and foreign companies with antitrust cases and merger cases involving the JFTC, as well as authorities in many foreign jurisdictions. In particular, he has significant experience with leniency applications for the JFTC. He is ranked as a notable practitioner in relation to antitrust and competition law in Chambers Asia-Pacific 2019 and is listed in Who’s Who Legal Competition 2019. He was also ranked as highly recommended in GCR 100 2018. He is a graduate of the University of Tokyo (BA, 2002; LLM, 2004) and is admitted to the Bar in Japan. He worked in Brussels at the competition law group of a leading global firm in 2011 as a visiting foreign attorney.