Overview
- Rosen died on December 25, 2025, at his home in Los Angeles, with his spokesman telling RePlay magazine he was surrounded by family.
- His family said he died of natural causes, according to ComicBook.com.
- He founded Rosen Enterprises in 1950s Japan, shifting from photo booths to importing coin‑operated machines and building a nationwide arcade business.
- In 1965 his company merged with Nihon Goraku Bussan to form Sega Enterprises, he became CEO/President, Sega launched Periscope in 1966, and he co‑founded the Japan Amusement Association the following year.
- He established Sega of America in Los Angeles, oversaw major console launches through the Saturn era, and stepped down from executive roles in 1996.