Oberheim is an American synthesizer manufacturer founded in 1969 by Tom Oberheim. Beginning in 1975, Oberheim developed some of the first commercially available polyphonic synthesizers and was a prominent synthesizer and drum machine manufacturer through the mid-1980s. In 1988, the company changed ownership and was eventually purchased by Gibson Guitar Corporation, which developed new Oberheim products and licensed the trademark to other companies that produced Oberheim products, but development of Oberheim products ceased after 2000.
https://en.wikipedia.org/wiki/Oberheim_Electronics