The name may not be familiar, but his influence can't be denied.
From 1982-95, he was CEO of Sony, and during his tenure, he oversaw the $3.4 billion purchase of Hollywood giant Columbia pictures and the development of the Sony Playstation, both of which transformed the electronics firm into a multimedia giant. But perhaps his most important contribution was the development of the Compact Disc. It is Ohga who chose the 75 minute length to the medium, as it was the size to contain Beethoven's Ninth Symphony...
Norio Ohga, former Sony president, dies
23 April 2011