Nitto Denko Corp. engages in the manufacture and sale of adhesives, optical films, semiconductor devices, electronic, medical, and membrane products. It operates through the following business divisions: Industrial Tape, Optronics and Others. The Industrial Tape division handles protection, sealing, and packaging products and equipment. The Optronics division produces and sells liquid crystal display materials, semiconductor materials, flexible printed circuits, and processing materials. The Others division includes medical and membrane products. The company was founded on October 25, 1918 and is headquartered in Osaka, Japan.