Which company designed AMS 1 1 17?

The manufacturer of AMS117 is AMS company, that is, advanced monolithic system. The designer doesn't know who it is. This is a general linear regulator. Many companies produce the same product, but with different prefixes. For example, it is called NCP117 produced by ON, LT 1 165438 produced by Linear, and LM 165438 produced by NS (China).