I am currently serving a chairman of Department of Otolaryngology and Head and Neck Surgery, University of Tokyo. I am an executive board member of IFOS, Asia Oceania ORL-HNS, and the ORL society of Japan which more than 11000 members belong to. My main fields are otology and neurotology and I have a lot of experience of cochlear implantation, tympanoplasty, canaloplasty, and lateral skull base surgery. I am also a President of Japanese Audiological Society which contains more than 2500 members including approximately 1700 ENT doctors. The annual number of cochlear implantation has been increasing to be approximately 1200 in Japan.