Riken Corporation (Riken) is an automotive part manufacturer. The company manufactures and sells automotive parts, industrial machinery parts and other products. Its products include a wide range of piston rings, construction equipment, marine engines and parts, brake parts, camshafts, seal rings, valve lifters, valve seats, fittings for iron and steel, stainless steel, EMC products and thermal engineering products. The company carries out its operations through its subsidiaries and associated companies located in China, Germany, India, Indonesia, Singapore, Spain, Taiwan, Thailand and the US. Riken is headquartered in Tokyo, Japan.