Sony Computer Entertainment, Inc. (SCEI) is a subsidiary of Sony Corporation that was established on November 16, 1993 in Tokyo, Japan. SCEI handles the research and development, production, and sales of hardware and software for their high-selling PlayStation line of handheld and video game consoles. SCEI is also a developer and publisher of video games for their systems. Sony is the publisher of the Ratchet & Clank series.
The president and Group CEO of SCEI is now Kazuo Hirai. He is replacing the widely acknowledged creator and father of the PlayStation, Ken Kutaragi, who now serves as an Honorary Chairman of SCEI. SCEI is comprised of several subsidiaries that cover the company's biggest markets: America, Europe, Oceania and Asia.
Like many other popular and non-popular video gaming companies, Insomniac Games, the developers and publishers of the Ratchet & Clank series, does not actually own the franchise—Sony Computer Entertainment owns the Ratchet & Clank franchise. Because of this, their games are only published for PlayStation systems, meaning the PlayStation 2, PlayStation 3, or PlayStation Portable.
Another game series related and connected to Insomniac is Naughty Dog, developers and publishers of the Jak and Daxter series. The two game companies manufacture similar games, notice the connection between Insomniac's Spyro the Dragon and Naughty Dog's Crash Bandicoot.