Tecmo Koei
On April 1, 2010, Koei absorbed Tecmo and renamed itself Tecmo Koei Games. Koei's subsidiaries in the United States, Europe and Korea already had their names changed months before the Japanese parent. On March 15, 2010, the developing operations of Koei and Tecmo were spun off as new companies under the names of Koei Co, Ltd and Tecmo Co, Ltd respectively, but they were integrated into Tecmo Koei Games the following year, on April 1, 2011.