developed “Mirai Ningen Sentakuki," or "human washing machine of the future." The Sanyo (now Panasonic) Ultrasonic Bath from 1970. Credit: Tokumeigakarinoaoshima/Wikimedia Commons To use the ...

OSAKA--A human washing machine, one of the most talked about ... The egg-shaped, glass-walled Ultrasonic Bath cleaned, massaged and dried the user in a fully automated process and was put ...

A wash and dry takes 15 minutes. Sanyo Electric’s human washing machine exhibited during the 1970 event was called Ultrasonic Bath. When the bather sat inside the egg-shaped tub, it ...