Name the Japanese unmanned spacecraft, that probes Asteroid Ryugu and discoverd small amount of minerals containing water on the surface of the asteroid?

Japanese unmanned spacecraft, Hayabusa2 reached Asteriod Ryugu on June,2018. Since then, the spacecraft landed multiple robotic probes on its rocky terrain of the Asteroid Ryugu.The spacecraft had surveyed 69,000 locations covering almost 90 percent of Asteroid Ryugu by using a near-infrared spectrometer capable of detecting hydrated minerals.According to its study published in U.S. Journal Science,the spacecraft probed and found the small amounts of minerals containing water on the surface of the asteroid.A part of the water might be from asteroids and comets.