It may look like a glorified salon chair, but a new Japanese hair-washing robot replicates the dexterous touch of a human hand to care for the locks of the elderly and the infirm.

Its creators at electronics firm Panasonic say the machine features the latest robotic technology and could help replace human care-givers in Japan's rapidly ageing nation without degrading the quality of the service.

Panasonic's hair-washing robot washes hair on a mannequin at a demonstration in Tokyo.

"Using robotic hand technology and 24 robotic fingers, this robot can wash the hair or handicapped in the way human hands do in order to help them have better daily lives," said developer Tohru Nakamura.