NOK Corp. engages in the manufacture, import and sale of seal products. It operates through the following segments: Seal Business, Electronic Device Product Business, Roll Business, and Others. The Seal Business segment produces and sells seal products to automotive, construction machinery, and general industrial machineries. The Electronic Device Product Business segment offers electronic components. The Roll Business segment manufactures and sells roll products to office equipment. The Others segment deals with special lubricants. The company was founded on December 02, 1939 and is headquartered in Tokyo, Japan.