Konami Computer Entertainment Japan

Konami Computer Entertainment Japan was one of Konami's video game development subsidiaries, best known for some of its parent company's most successful video game franchises, including Metal Gear and licensed media franchises such as Yu-Gi-Oh!. On April 1, 2005 KCEJ was merged into the parent company while Hideo Kojima formed his own subsidiary, Kojima Productions.

Source : IGDB