I worked on a research project at Toyota in Toyota City. We were trying to improve the dynamic control of the rotational speed of their paint bells. There is a great deal of information about electrostatic paint bell systems on the internet. The overall process was very similar to the one described here: https://en.wikipedia.org/wiki/Rotational_bell_painting

During the last 20 years, the quality of Toyota's paint application has never been equalled, and they know it. I am not familiar with this new process, but it wouldn't surprise me if it were primarily based on small improvements to existing methods. After many years of working with Toyota, I can tell you that the superiority of their products is seldom due to new technology, but rather their dedication to perfection.