<p>1999 – 2006 Assistant Professor, Department of Otolaryngology Faculty of Medicine, Niigata University</p> <p>2006 – 2012 Lecturer, Department of Otolaryngology Faculty of Medicine, Niigata University</p> <p>2012– 2015 Associate Professor, Department of Otolaryngology Head and Neck Surgery Faculty of Medicine, Niigata University</p> <p>2015-2017 Associate Professor, Department of Otorhinolaryngology Jikei University School of Medicine</p> <p>2017- Present Professor and Medical Director, Department of Otorhinolaryngology Jikei University School of Medicine</p>