NITTAN Corp. engages in the manufacture and sale of engine valves, automobile parts, spinning machine parts. It operates through the following segments: Small Engine Valve, Marine, Gear, and Printed Wiring Board (PWB). The Small Engine Valve segment offers engine valves for engines for automobiles, two wheels, trucks, and buses. It also manufactures and sells generators, tillers, and mowers. The Marine Business segment manufactures engine valves for marine products in Japan and South Korea. The Gear segment segment sells precision forged gears for automobiles, trucks, agricultural machinery, construction machinery, industrial machinery, etc. The PWB segment sells automatic transmission parts. The company was founded by Shinji Shibayanagi in 1924 and is headquartered in Hadano, Japan.