- 2012 - 2015 сollaborator (headed by Prof. J.Whitman, NINJAL); "Typological and Historical/Comparative Research on the Languages of the Japanese Archipelago and their Environs"
- 2011 - 2013 сollaborator (headed by Prof. P.Prashant, NINJAL); "Universals and Crosslinguistic Variations in the Semantic Structure of Predicates"
- 2010 - 2013 代表者;科学研究費補助金(若手研究(B))「コーパスに基づいたアイヌ語動詞範疇についての類型論的研究」
- 2010 - 2013 сollaborator (headed by Prof. M. Haspelmath, the Max Planck Institute for Evolutionary Anthropology); "Valency Classes"
- 2010 - 2013 сollaborator (headed by Prof. T. Kurebito , ILCAA, TUFS); "Typology of the Northern Languages"
- 2009 - 2012 сollaborator (headed by Prof. T.Tsunoda, NINJAL); "Noun-concluding construction: Grammaticalization of nouns"
- 2009 - 2012 сollaborator (headed by Prof. T.Tsunoda, NINJAL); "Modal and speech-act limits on clause-linkage"
- 2009 - 2011 сollaborator (headed by Prof. Y.Matsumoto, Stanford University). "Noun-Modifying Constructions in Languages of Eurasia"
- 2007 - 2009 head of the project "Documentation of the Saru dialect of Ainu" funded by London University (SOAS), ELDP
- 2006 - 2009 collaborator (headed by Prof. W.Nakamura, Tohoku University; Minpaku); "Typological study of voice phenomena in the world’s languages"
- 2007 - 2008 collaborator (headed by Prof. M. Minegishi, TUFS); "Global COE Program, Corpus-based Linguistics and Language Education"
- 2005 - 2007 co-investigator (headed by Prof. H.Nakagawa, Chiba University); "Ainu applicatives in a typological perspective"
- 2005 - 2006 collaborator (headed by Prof. H. Nakagawa, Chiba University) "Verbal structure in Eurasian languages"
- 2001 - 2002 collaborator (headed by Prof. T. Sato, Hokkaido University); "A classificatory study of the dialects of Ainu, a moribund language"
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The Association for Linguistic Typology (ALT)
, The Linguistic Society of Japan (LSJ)
, The Japan Association for the Study of Russian Language and Literature (JASRLL)
, The Societas Linguistica Europaea (SLE)