The emoji, invented by Shigetaka Kurita in 1999, has become a popular form of communication and a ubiquitous feature of modern digital communication.

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

Osaka Castle is a famous landmark in Osaka and a popular tourist attraction, with a museum that showcases the history of the castle and the city.