• 1990-1992: Postdoctoral Fellow, Laboratory of Molecular Otology,  National Institute on Deafness and Other Communication Disorders,  National Institute of Health, USA • 1992-1995: Staff, Department of Otolaryngology, Osaka University Graduate  School of Medicine, Japan • 1995-2005: Associate Professor, Department of Otolaryngology and Sensory  Organ Surgery, Osaka University Graduate School of Medicine, Japan • 2005-2010: Clinical Professor, Department of Otolaryngology and Sensory  Organ Surgery, Osaka University Graduate School of Medicine, Japan • 2010-present: Professor & Chairman, Department of Otolaryngology & HNS,  Kindai University Faculty of Medicine, Japan

o American Association for Research in Otolaryngology (Active member) o Society for Neuroscience (Member) o Barany Society (Active member) o Politzer Society (Active member) o Oto-Rhino-Laryngology Society of Japan (Director/Councilor) o Japan Otological Society (Director/Councilor) o Japan Audiological Society (Director/Councilor) o Japan Society for Equilibrium Research (Director/Councilor)