Dr. Ohno is a radiation oncologist, Professor and Chair of Department of Radiation Oncology, and Medical Director of Gunma University Heavy Ion Medical Center, Japan. His research has focused on gynecologic cancer treatment and carbon ion therapy for various cancer sites. He is now a core member of the Japan Carbon-ion Radiation Oncology Study Group (J-CROS) since 2014. He was also an External Advisory Board member of Shanghai Proton and Heavy Ion Treatment Center and the Korea Heavy-ion Medical Accelerator (KHIMA) Project in Korea. Dr. Ohno has served as Course Director on International Training Course on Carbon-ion Radiotherapy hosted by NIRS and Gunma University since 2012. He has served a chair of gynecologic tumor committee of the Japan Radiation Oncology Study Group (JROSG) since 2017. He is also a member of Radiation Oncology Project of the Forum for Nuclear Cooperation in Asia (FNCA) for 15 years. In this project, multi-center clinical trials on cervical cancer, nasopharyngeal cancer, and breast cancer have been performed among 11 Asian countries: Bangladesh, China, Indonesia, Japan, Korea, Kazakhstan, Malaysia, Thailand, The Philippines, Mongolia, and Viet Nam.