Japanese automakers have been leaders in developing fuel-efficient and low-emission vehicles, such as hydrogen fuel cell cars and plug-in electric vehicles.
In Japan, there is a hotel that is staffed entirely by robots, from the receptionist to the cleaning crew.
The airbag, which was co-invented by Yasuzaburo Kobori and Allen K. Breed in the 1980s, has become a standard safety feature in automobiles worldwide.