"I am from Osaka. I obtained my Ph.D. in the U.S. and became a Japanese language instructor at the university. Since moving to Keio University in 2000 I have been teaching English and linguistics. My research interests are in sign language linguistics, syntax (grammatical arrangement of words), and language development. I advised NHK Educational TV's 'Everyone's Sign Language' program in 2018 and 2019, and have published 'Learning the Basics of Sign Language Linguistics in JSL' from Kuroshio Publishers in 2015. I hope you will learn the basics of JSL using Signs I/O and enjoy interactions with the Deaf."