Okada Aiyon Corp. engages in the manufacture and sale of construction machinery machines. It operates through following segments: Domestic, and Overseas. The Domestic segment manufactures and sells attachments for construction machinery for the domestic market, as well as environmental equipment, forestry machinery, industrial machinery, and cable cranes. The Overseas segment involves in procurement and sale of attachments for construction machinery and environmental equipment for overseas markets. The company was founded by Tatsuo Okada in 1938 and is headquartered in Osaka, Japan.