2017 - 2022 A comparative study of complaint handling in English and Japanese: Developing ESP materials for the tourism industry from the perspective of pragmatics
2013 - 2017 Building Multilingual Lexical-Semantic Web by Sense Linking
2013 - 2016 An improvement of foreign language education using digitalization for enhancing quality.
2006 - 2008 An Official Viollet-le-Duc and literature