Kawasaki debuted its concept humanoid robot at International Robot Exhibition (iREX) 2017. At 178 cm tall and weighing 85 kg, the robot can bench 60 kg and do pull ups. The robot has a total of 32 DoF.
https://www.youtube.com/watch?v=dEj-2s-NRiI
A model called Robust Humanoid Robot 2 (RHP2) was featured in Development of Life-Sized Humanoid Robot Platform with Robustness for Falling Down, Long Time Working and Error Occurrence.
https://www.youtube.com/watch?v=lSBgoQtdKXI
RHP2 uses ball screws for most joints. This allows for high impact tolerance and high gear ratios. From the max torque and calculated gear ratios, Kawasaki most likely uses Maxon EC-4pole 30 motors for each joint, but unlike other robots from the JSK lab at the University of Tokyo, they are not water cooled.
https://www.youtube.com/watch?v=CMWkKOgLWT8
At iREX 2019, held at Tokyo Big Sight from December 18 to 21, 2019, Kawasaki unveiled Kaleido. In an interview on Kawasaki’s website, Masayuki Kamon (head of the project) referred to what was shown at iREX 2017 as the second generation of Kawasaki humanoid. He considers what was shown at iREX 2019 to be either 5th or 6th generation.