Okada Aiyon Corporation manufactures, sells, and repairs construction machines in Japan. Its products include hydraulic breakers, demolition pulverizers, demolition crushers and shears (cross cutters, cutters, and primary crushers), recycling attachments such as grapples, clean and wood cutters, and screening buckets, couplers, and secondhand attachments. The company was formerly known as OKADA Rock Drill Co. and changed its name to Okada Aiyon Corporation in 1983. Founded in 1938, it is headquartered in Osaka, Japan.