In October 1993, Atari Corporation filed a lawsuit against Sega for an alleged infringement of a patent originally created by Atari Corp. in the 1980s, with the former seeking a preliminary injunction to stop manufacturing, usage and sales of hardware and software for both Sega Genesis and Game Gear. On September 28, 1994, both parties reached a settlement in which it involved a cross-licensing agreement to publish up to five titles each year across their systems until 2001. The Master System version of "Shinobi" was one of the first five titles approved from the deal by Sega in order to be converted for the Atari Jaguar, but it was never released.