US Patent 11304872 Bathtub

There is provided a bathtub, including: a bottom surface part; a side surface part surrounding the bottom surface part, extending upward from the bottom surface part, and including a backrest part; a pillow part provided to be movable vertically over a prescribed range along the backrest part; and a water discharger mounted to the pillow part, the water discharger being provided to be movable vertically along the backrest part with the pillow part.