- 2024 - 2029 琉球諸語における指示詞の総合的研究
- 2022 - 2026 Variation and historical transition of verb morphology in Ryukyuan languages
- 2020 - 2024 Case as a Grammatical Category in Japanese and Ryukyuan Languages
- 2019 - 2024 A study of demonstratives in Ryukyuan languages: Toward an elucidation of Proto-Japonic
- 2018 - 2024 Description and documentation of Ethiopian languages: Towards a social innovation
- 2016 - 2023 A fundamental study and data collection for documenting the dialects of Miyakoan
- 2019 - 2021 日琉諸語の歴史と発展についての総合的研究に向けて
- 2017 - 2021 A cross-dialectal study on the form and the function of Kakarimusubi in Ryukyuan and Hachijoan dialects
- 2017 - 2019 「何もしなければ」消滅してしまう琉球のことばを、 記録、共有して、継承するために
- 2017 - 2019 宮古語池間方言と八重山語波照間方言における無声鼻音の研究
- 2014 - 2018 A study of the northern dialects of Miyako Ryukyuan
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