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Hitachi Ltd.'s Emiew3 humanoid robot stands on display at a media briefing in Tokyo, Japan, on Friday, April 8, 2016. The 35 inches (90 centimeters) robot has a remote brain and it can approach people in stores and public facilities who require assistance, according to the company. Hitachi will start sales of the new robot by 2018. Photographer: Kiyoshi Ota/Bloomberg via Getty Images

Hitachi Ltd.'s Emiew3 humanoid robot stands on display at a media briefing in Tokyo, Japan, on Friday, April 8, 2016. The 35 inches (90 centimeters) robot has a remote brain and it can approach people in stores and public facilities who require assistance, according to the company. Hitachi will start sales of the new robot by 2018. Photographer: Kiyoshi Ota/Bloomberg via Getty Images