BrainRobotics (BrainCo)

BrainCo has developed a BMI (Brain-Machine Interface) headband that can be used to control robots, amongst other things.
At CES their BrainRobotics division was demonstrating their low-cost prosthetic hand (Fig. 1-2).
They also had a Sawyer robot arm that could be controlled by their BMI to grasp ping pong balls (Fig. 3-5).

Fig. 1: Prosthetic hand	Fig. 2: Prosthetic hand
Fig. 3: BMI control of Sawyer robot.	Fig. 4: BMI control of Sawyer robot.	Fig. 5: BMI control of Sawyer robot.

Shanghai OYMotion Technoloies Co. Ltd.

They were demonstrating their robot hand and a gesture recognition system that uses an arm-band sensor to detect muscle motion.

Fig. 6:

Video: Demo of gesture control with TV. OYMotion

Zorpia Robot Co. Ltd

Their booth was empty but it looks like they are developing a bionic or prosthetic hand.
It’s not clear if their poster shows their actual product or a concept design.

Fig. 7: