• Doctor of Philosophy (Ph.D.) in Language Education Takushoku University, 2014
• Master of Arts (M.A.) in Japanese Language Education Takushoku University, 2009

• Japanese Language Education
• AI-assisted Language Learning
• Digital Literacy in Higher Education
• Intercultural Communication
• CALL (Computer-Assisted Language Learning)

AI Use and Literacy among Japanese-Learning University Students
Research investigating how Japanese-learning students use generative AI tools such as ChatGPT for assignments and language learning, with particular focus on AI literacy and ethical use of AI.

Yoshikawa, Y. (2013). Pronunciation of Ha-gyo consonants: Comparing two-character Kango (Sino-Japanese words).
Takushoku University Graduate School of Language Education Studies, 13, 115–126.
Reprinted in: National Institute for Japanese Language and Linguistics. (2015).
“Pronunciation of Ha-gyo consonants: Comparing two-character Kango (Sino-Japanese words).”
Collected Articles on the Japanese Language, 50, Stylistics and Phonology Section, 200–205.

Yoshikawa, Y. (2012). Confusion of “Shū” (集) and “Shū/Ju” (聚) in Chinese-derived readings.
Rikkyo University Japanese Language Studies, 19, 60–66.

Yoshikawa, Y. (2012). Research on the literature Seisuisho: Evaluating its reliability as a source for Kango (Sino-Japanese words) in Chinese-derived readings.
Takushoku University Graduate School of Language Education Studies, 12, 85–102.

Yoshikawa, Y. (2011). Research on the literature Seisuisho: Screening, authentication, and compilation of previous studies. Rikkyo University Japanese Language Studies, 18, 58–74.

Yoshikawa, Y. (2014). The development of the pronunciations and meanings of “Kango” (Sino-Japanese words) modelling on the source literature “Seisuisho”, Anrakuan Sakuden (1615–1623): Reasons and patterns of change.
Doctoral dissertation, Graduate School of Language Education, Takushoku University, Tokyo, Japan.
URL: https://takushoku-u.repo.nii.ac.jp/records/104

Yoshikawa, Y. (2026). AI use and literacy survey: Japanese-learning students in the Business Communication International Program, Thammasat University [Conference abstract].
In Abstract Book: The 19th Annual National Conference of the Japanese Studies Association of Thailand (p. 20).
Japanese Studies Association of Thailand.
URL: https://jsat.tsu.ac.th/downloads/Abstract%20book.pdf

Yoshikawa, Y. (2021). Learning Japanese Grammar: Organize Grammatical Terminology.
Kindle Edition. URL: https://www.amazon.co.jp/dp/B09G19ZB2X

Yoshikawa, Y. (2020). JAPANESE FOR DAILY CONVERSATION.
Kindle Edition. URL: https://www.amazon.co.jp/dp/B08DTQ31QW

Yoshikawa, Y. (2020). The Japanese Sentence Structure Pattern.
Kindle Edition. URL: https://www.amazon.co.jp/dp/B084L84MPB

Yoshikawa, Y. (2018). Kanji for Japanese Learners in Hong Kong.
Kindle Edition. URL: https://www.amazon.co.jp/dp/B07BTDPVPL

Yoshikawa, Y. (2018). JOSHI: THE BASICS.
Kindle Edition. URL: https://www.amazon.co.jp/dp/B079CLWGYX

Yoshikawa, Y. (2025). “AI Use and Literacy Survey: Japanese-Learning Students in the Business Communication International Program, Thammasat University.”
Presented at the 19th Annual National Conference of the Japanese Studies Association of Thailand.

Yoshikawa, Y. (2016). “Report on Learning Activities of Japanese Speech Using ICT.”
Presented at the Association of Japanese Language Education in Thailand.

Confusion of “Shū” (集) and “Shū/Ju” (聚) in Chinese-Derived Readings. Paper presented at the Society for Japanese Language Studies, Rikkyo University, Tokyo, Japan, December 15, 2012.