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- Is it possible to integrate linguistic theories into language education?, Presentor, 2005.1, Tokyo University of Foreign Studies
- Accent in Romance Languages, Presentor, 2004.5, Tokyo College of Music
- Infinitive clause and verb class A diachronic viewpoint in French, 2000.6, Sophia Linguitic Circle
- First written documents of French language, Centennial Symposium of Tokyo University of Foreign Studies, 1999.11
- Medieval dream, knight and madame, 1998.12, Fuchu Center for Lifelong Learning
- Sonorisation, degemination, diphthongisation, Japanese Society of French Linguistics, 1996.12, Sophia University
- Reflections on sylistic variation, 1995.12, Institute of Language Research, Tokyo University of Foreign Studies
- Geolinguistic signification of words representing money and land measure in the 13th century medieval documents of Champagne, Japanese Society of Romance Linguistics, 1995.5, Aoyama Gakuin University
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