Rumor: Yoshihisa Hashimoto leaves Sonic Team for Square Enix By Stephany Nunneley, Tuesday, 7 July 2009 17:12 GMT Share on: Facebook Twitter Reddit Google+ Sonic Team’s Yoshihisa Hashimoto has left Sega and is now technical director at Square Enix. This is according to his LinkedIn profile. Apparently, this happened about a month and a half ago. No official statement has been released. Via GoNintendo, Tssznews.