HRP-4 is one of the world's most advanced humanoids, the culmination of a decade of R&D. It's designed to collaborate with humans and can perform remarkably natural, human-like movements.
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HRP-4 became a YouTube sensation when it was first demonstrated in 2010.
HRP-4 is the latest model in the HRP series of robots, the result of a lasting collaboration between Kawada Industries, led by Tadahiro Kawada, and Japan's National Institute of Advanced Industrial Science and Technology (AIST), headed by Tamotsu Nomakuchi. HRP-4 follows the development of HRP-2 in 2002 and HRP-3 in 2006. In this project, engineers from Kawada focused on the humanoid robot hardware while the AIST researchers (including Kazuhito Yokoi, leader of the Humanoid Research Group, and Fumio Kanehiro, a senior researcher) developed the motion-control software. The goal was to make the new humanoid lighter (and therefore safer for human interaction) and yet more capable than previous generations, both in terms of manipulating objects and navigating human environments. The final design was unveiled in September 2010.