"Korg Corporation is a Japanese multinational corporation that manufactures electronic musical instruments and electronic tuners. The company is one of the most widely used and respected names in professional music worldwide. Yamaha Corporation has always been a major partner of Korg, supplying them with circuitry and mechanical parts. In 1987, shortly before the release of the M1 Music Workstation, Yamaha acquired a controlling interest in Korg's stock. The takeover of the company was amicable, with Kato drawing up the terms, and the two companies continued to independently develop their product lines and compete in the marketplace. After the following 5 very successful years, Kato had enough money to rebuy most of the Yamaha share back in 1993."