The karaoke machine, which was invented by Daisuke Inoue in 1971, has become a popular form of entertainment worldwide.
The instant noodle, invented by Momofuku Ando in 1958, has become a staple food item in many countries around the world.
The robotic pet, such as Sony's Aibo, has become a popular form of entertainment and companionship for people who cannot keep real pets.