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David Rosen, co-founder of Sega, died at 95 on December 25 at his home in Los Angeles. A US Air Force veteran, he established an import business in Japan post-Korean War. In 1965, his company, Rosen Enterprises, merged with Nihon Goraku Bussan to form Sega.

He guided Sega's transformation from an arcade game importer to a key player in the home console market. Under his leadership, Sega gained prominence with arcade games like Periscope and later achieved success with home consoles such as the Master System and Mega Drive, known as Genesis in North America. His funeral took place on January 2, and he is survived by family members.