Founded in Kyoto in 1956 as a Nishijin kimono factory, we now develop wearable devices including smart wear and smartwatches that offer solutions for health condition monitoring and heat stress prevention. We have sold 4.1 million units domestically. All our devices incorporate a proprietary algorithm, developed jointly with the University of Occupational and Environmental Health, Japan, that estimates changes in core body temperature from heart rate or pulse wave data to visualize heat stress risk in advance using the wearer's own vital data, rather than relying on surface or ambient temperature.