He completed a research stay as an invited professor at the prestigious research center of the France, CNRS(Centre National de la Recherche Scientifique) in 2020. His interdisciplinary research unities two strands of recent, significant semiotic inquiry: the development of European semiotics as an important paradigm of contemporary human sciences, and the transmission, reception, and circulation of semiotic and cultural theories in many sectors such as media theory and history, visual culture studies. He has published more than one Hundred articles in international and domestic journals such as Semiotica, Hermes, Langages, Degres, Signata, etc. He received the price of the Mouton d'Or in 1994, attributed by the Semiotica to the best article. His teaching, like his research, reflects a passionate interest in many cultural phenomena. His primary goal as a humanities educator- fueled by 28 years of experience teaching in the Korean higher education - is to harness the powerful relationships that students already have with cultural meaning and value in general, bridging the gap between those relationships and the sciences of meaning they encounter in academic settings. In exploring diverse sign systems in traditional and modern culture for a course on media history and media semiotics, he had students compare the experience of attempting to analyze the hidden semiotic codes of some specific cultural aspects. He also had students collaborate to create a concrete report in the new course, Humanities and Cultural and Creative Industries, in the style of business proposal. Through such activities, he transform media theory, cultural theory and sign making from an abstract phenomenon into a tangible part of student's lives, generating entry points for discussions of how semioticians and humanistic scholars have grappled with meaning and value creation. His research and his recent teaching experience - which has included designing and executing a yearlong course for other graduate students on teaching methods and advising faculty members on their syllabi - have primed him to create and teach inspiring cross new media theories, cultural theories and practices. He was selected to lead an interdisciplinary program of the Humanities and Cultural and Creative Industries for undergraduate students at Korea University in 2017. He is also prepared to conduct researches on a wide array of subjects in comparative media history, writing systems, cultural theory, environmental humanities, semiotics and history of linguistic ideas in the comparative and global perspective of the Eastern and Western Civilization.