The Yutani Corporation was a Japanese corporation that existed in the 21st century. The CEO, Ms. Yutani, acquired a YautjaPlasma Cannon from a hunter sent to Earth, and she utilized it to advance human technology. On December 12, 2029, the Yutani Corporation filed a lawsuit against Weyland Corp over a patent dispute with the David Series. Weyland Corp won the David patent lawsuit years later. Sometime after Project Prometheus, Weyland Corp would acquire the Yutani Corporation thus forming the Weyland-Yutani Corporation.