Radiation shields & protection devices, as well as lead acrylic sheets manufactured at Kuraray's Niigata Plant, are being manufactured and marketed. They are being used in various fields including medical, physical and chemical sciences and nuclear science and technology. In particular, Kuraray products are being used to prevent radiation exposure to medical workers and to secure safety and stability in work operation, in view of the essential need of x-ray and gamma ray diagnosis and treatment in modern medical. Furthermore, "radiation shield" is a medical device that is being manufactured and marketed with license as "manufacturing and marketing business" under the Pharmaceutical Affairs Act.