Okada Aiyon Corp. engages in the manufacture and sale of construction machinery machines. It operates through following segments: Domestic, Overseas, and Aiyon. The Domestic segment offers crushers, wood waste processing equipment, and concrete waste processing equipment. The Overseas segment sells crushers to customers overseas. The Aiyon segment provides forestry and industrial machineries. The company was founded by Tatsuo Okada in 1938 and is headquartered in Osaka, Japan.