Natsume Research Institute, Co.

Natsume Research Institute is a Japanese biotechnology and neuroscience research company specializing in pupil response analysis technology to quantify human emotions and unconscious reactions. The company conducts basic research on pupillary light reflex patterns and develops measurement and analysis systems that translate involuntary pupil movements into objective emotional data applicable across healthcare, education, living environment, crime prevention, and entertainment sectors. Founded in 2013 and headquartered in Tokyo, Natsume Research Institute partners with leading institutions including Nagoya University Hospital and Panasonic Electric Works to advance clinical and commercial applications of its proprietary pupillometry technology.