Our History Toray began developing membranes for water treatment in 1968. Since then, we have built decades of experience in R&D, manufacturing and application development for reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), microfiltration (MF), and membrane bioreactor (MBR) technologies. Our Products Toray offers the latest membrane materials, technologies and integrated solutions for brackish and seawater desalination, water reuse and purification, and process and specialty separations.