The bullet train (Shinkansen), which began operation in 1964, was the first high-speed train system in the world and is still one of the fastest.

The digital watch, invented by Seiko in the 1970s, revolutionized the way people tell time and made watches more convenient and accurate.

The robotic pet, such as Sony's Aibo, has become a popular form of entertainment and companionship for people who cannot keep real pets.