Personal robots and robot technology (RT)-based assistive devices are expected to play a
major role in our elderly-dominated society, with an active participation to joint works and
community life with humans, as partner and as friends for us. The authors think that the
emotion expression of a robot is effective in joint activities of human and robot. In addition,
we also think that bipedal walking is necessary to robots which are active in human living
environment. But, there was no robot which has those functions. And, it is not clear what …

抄録 Personal robots and Robot Technology (RT)-based assistive devices are expected to
play a substantial role in our society largely populated by the elderly; they will play an active
role in joint works and community life with humans. In particular, these robots are expected
to play an important role in the assistance of the elderly and disabled people during normal
Activities of Daily Living (ADLs). To achieve this result, personal robots should better be
capable of making emotional expressions like human. In this perspective we developed a …