In 1965 Sega merges with Rosen Enterprises Inc, one year later Sega releases Periscope, a submarine simulator. Rosen and other sell holders sell Sega to gulf & western industries. Rosen remains CEO the gulf and western build the original product in 1969. In 1979 Hayao Nakayama found Distribution Company and Rosen acquires it. Revenues reaches the price $214 million dollars in 1982.
One year after that Sega comes out with first laserdisc game, “Sega Aston Belt’, and the first 3d computer game “Sub Rock 3d” at the same time Gulf & Western spun off 20% of Sega. Rosen, Nakayama, and other Japanese investors buy Japanese assets of Sega for $38 million dollars Nakayama becomes chief executive, Rosen head US subsidiary. In 1986 Sega stock is listed over the counter at the Tokyo stock exchange and the Sega system is released.
Four years later Sega releases the Mega drive a 16-bit game console (known as Genesis in U.S. and Japan. In 1991 the game that changed video game history (my opinion) Sonic the Hedgehog was released if not then one of the most popular games of all time. In 1993 Yu Suzuki creates Virtual Fighter in 1994 Time Warner launches The Sega Channel based on cable network in 1995 the Sega Saturn was released followed by the Sega Dream cast with a built in modem.