Keigan Motor

Their flagship product is a motor module born from the idea of adding the function of a robot to the motor itself. It helps engineers to develop full-scale robots.
https://en.keigan-motor.com/

Yukai Engineering

They specialize in the development of robots that bring joy to life. Qoobo, their tail-wagging emotionally responsive robot, won Red Dot Design Award and several product design awards.
https://www.ux-xu.com/en

Chinougijutsu

Their latest product is a finger mouse AI software, UbiMouse, that allows users to easily operate the screen without touching anything.
http://www.chinou.co.jp/en/home/