She is a sociolinguist interested in how social settings enhance or inhibit bilingualism, and has been doing fieldwork in Japan, Canada, and Brazil. Her major English publications include Balancing L1 maintenance and L2 learning: Experiential narratives of Japanese immigrant families in Canada (In K. Kondo-Brown [Ed.], Heritage language development: Focus on East Asian immigrants, 2006) and Ethnolinguistic vitality among Japanese-Brazilians: Challenges and possibilities (co-authored with L. Matsubara Morales. Journal of Multilingual and Multicultural Development, 2016). She has also published extensively in Japanese in the domains of applied linguistics, teacher and multicultural education. Currently she is working on a government-funded five-year project that addresses the need for effective majority education in establishing a pluralistic nation. Courses she teaches address minority language education, language and power, sociocultural theory, and critical applied linguistics. She received her PhD in second language and multicultural education