The karaoke machine, which was invented by Daisuke Inoue in 1971, has become a popular form of entertainment worldwide.
Katsuobushi, a type of dried and smoked tuna that is often used to flavor dishes and is a key ingredient in dashi.
The vending machine, which has been in use in Japan since the early 20th century, offers a wide range of products, from drinks and snacks to clothing and electronics.