Based in Tokyo, Japan, KEIWA Incorporated, founded in 1948, is a key... Based in Tokyo, Japan, KEIWA Incorporated, founded in 1948, is a key manufacturer and supplier of specialized optical sheets and advanced functional materials. The company, which operated as KEIWA Commerce and Industry Co., Ltd. until its name change in 1999, provides a comprehensive array of products. This includes light diffusion sheets vital for the backlight units in smartphone liquid crystal displays, as well as components for bespoke optical films, such as protective layers for light-collecting films. KEIWA also develops sophisticated functional films and sheets utilized for display surface protection in optical systems and numerous other applications. Beyond its optical segment, the company supplies industrial packaging solutions, specialized processing papers, materials for clean energy technologies, and a variety of other industrial goods, particularly for the construction and agricultural sectors.
