His research fields are Clinical otology and neurotology, Otologic and Neurotologic research, Bone metabolism of middle ear, Drug and gene therapy, Protection of cochlear damage. Awards include 'Politzer society meeting (international otologic society meeting) award in 2005 (at Seoul ,Korea)', '1st Global otology research forum (GLORF) Award', 'Medical Award of the Japan Medical Association', 'Tokyo medical association encouragement Award'. His associations include Japanese otolaryngology society, Japanese otology society, Japanese audiology society.