KEIWA Incorporated develops, manufactures, and sells optical films in Japan. The company provides diffusion films used in liquid crystal displays and sensors of smartphones, tablets, laptops, in-vehicle monitors, etc.; and advanced functional films and sheets used for smartphones, in-vehicle products, business-used monitors, sensors, display surface protection, etc. It also offers processing papers; packaging materials, including corrosion inhibiting paper and film; clean energy materials, such as solar cells, secondary cells, wind power generators, etc. In addition, the company provides reflective and gutter sheets which supports the growth of crops, as well as construction materials. Further, it manufactures and sells industrial materials, including special films for medical and hygiene usage; building materials; and protective and life-extending sheets for building roofs and various structures. The company was formerly known as KEIWA Commerce and Industry Co., Ltd. and changed its name to KEIWA Incorporated in 1999. KEIWA Incorporated was incorporated in 1948 and is headquartered in Tokyo, Japan.