Three entries follow from the permanent-exhibition catalog for the Japan World Exposition ’70:

• The Wireless Telephone

The Telecommunications Pavilion exhibited the wireless telephone, which was called “Dream Telephone” at the time, with which one could make an immediate telephone call to anywhere in Japan. It is the origin of today’s cell phone.

• The Ultrasonic Bath (Washing machine for human beings)

The ultrasonic bath at the Sanyo Pavilion was the full-automatic bath where people can sit in the capsule not only to clean the skin but to maintain both health and beauty, using massage balls and supersonic waves. Currently the same technology is applied to the baths for long-term nursing.

• The Electric Car

The electronic cars run with storage battery and motor, without emitting exhaust fumes or noise. At the Expo these electric vehicles were introduced in Japan for the first time on a trial basis as taxis, transportation inside the Expo, and press cars.