Kunihiro Sumida was admitted to the Japanese Bar in 2000 and is a partner at Atsumi & Sakai. He was educated at Meiji University (LLB, 1994), the Legal Training and Research Institute of the Supreme Court of Japan and the University of Kent (LLM, 2007). He was based in the Doctor Sonderhoff Law Office LLP (2000–2001), Dorsey & Whitney LLP (2001–2003), Sonderhoff & Einsel Law and Patent Office LLP (2003–2009) and Hayabusa Asuka Law Offices LLP (2009–2012). He is a member of the Tokyo Bar Association. Kunihiro is recognised as a top-class IP/IT expert with high levels of expertise in IP litigation and arbitration cases. He handles cross-border IP matters, including contentious mandates.