Introduction

My research has focused on the transmission and reception of medieval English literature through the perspectives of book history and textual studies. By integrating the material culture approach—with its emphasis on the physicality of books—and traditional textual scholarship, the study examines how literary works were interpreted, and at times transformed, in response to the historical and social contexts of their time. Through this inquiry, it seeks to illuminate the cultural and religious transformations of late medieval England as reflected and embedded in medieval books. My current research interests also include medieval conceptions of time, women readers, self-governance and the health of the soul and body. Drawing on my research experience as a book historian, I have contributed to cataloguing early printed books held in Keio University Library and other research institutions in Japan. In parallel, In parallel, I pursue educational initiatives that address the disembodiment of thought in an increasingly digital society, advocating for renewed engagement with the tactile and embodied dimensions of human knowledge through book-centered learning.

■Textual Studies and Scholarly Editing of Middle English Saints' Lives
Research Objective: Producing a scholarly edition based on textual and bibliographical analyses of The Golden Legend, translated and printed by William Caxton.
-Title: Caxton's Golden Legend: Vol. I: Temporale, ed. by Mayumi Taguchi, John Scahill and Satoko Tokunaga, Early English Text Society, OS 355 (Oxford University Press, 2020)
-Title: Caxton's Golden Legend: Vol. II: The Old Testament Legends, ed. by Mayumi Taguchi, John Scahill and Satoko Tokunaga, Early English Text Society, OS 357 (Oxford University Press, 2021)
■Incunabula studies
Research Objective: To present recent developments and future directions in incunabula studies, while critically engaging with the scholarly tradition that has shaped the field.
-Title: Production and Provenance: Copy-Specific Features of Incunabula, ed. by Takako Kato, John Goldfinch and Satoko Tokunaga (Brill, 2025)
■Digital Approaches to Bibliography & Book History
Research Objective: Cataloguing and promoting public access to Western early printed books in Japan collections
-Title: A Preliminary Descriptive Catalogue of Sixteenth-Century English Books at Keio University Library, Keio University Hiyoshi Review of English Studies, 76 (2022), 1–30 (with Yuki Sugiyama, Yuta Nishikawa and Ed Potten)
-Title: (Ed.) Digital Collections of Keio UL Incunabula

Areas of Research

・Digital humanities

Social Contributions

・The preservation of cultural properties (such as European rare books) and the promotion of public access
・Bridging the humanities with a digital society
・Advancing European medieval studies
・Fostering international collaboration