Published in Nikkei Digital Health: “Japanese Companies Taking on Wearable Medical Devices, Using Measurement Accuracy as an Edge to Create a New Market”. Posted on November 5, 2020December 8, 2020 by Quantum Operation Inc. Quantum Operation Inc. is a member of Nikkei Crosstech / Nikkei Digital Health Japanese company taking on “wearable medical devices, Using measurement accuracy as a strength to create new markets.