The electric guitar, invented by Fujigen Gakki in the 1950s, has become a staple instrument in popular music worldwide.
The robotic pet, such as Sony's Aibo, has become a popular form of entertainment and companionship for people who cannot keep real pets.
The Toyota Prius, first introduced in 1997, is the world's first mass-produced hybrid car and has become a symbol of eco-friendly transportation.
