Sports tourer motorcycle sold by Kawasaki in 1984. An American in Kawasaki's North American sales department said of the GPZ900R: "Oh, it looks like a Ninja!" This led to the use of the sub-name 'Ninja' for the bike in North America. The GPZ900R also appeared in the film 'Top Gun' as Tom Cruise's favourite car, making it an extremely well-known machine. For many years, Kawasaki had used high-output air-cooled four-cylinder engines in its sports bikes, but their large, heavy engines had the disadvantage of hampering cornering performance. To address this problem, Kawasaki introduced a series of new technologies in the GPZ900R, including a newly developed liquid-cooled four-cylinder engine that was lighter and more compact to improve dynamic performance, and a full fairing that was revolutionary at the time for reducing aerodynamic drag, which easily outperformed the previous GPZ1100 model in terms of horsepower and overall performance. The GPZ1100R easily outperformed its predecessor in terms of overall performance. The new technologies adopted on the GPZ900R not only laid the foundations for Kawasaki's subsequent high-performance motorbikes, but also influenced the technical direction of many subsequent supersport models, making it a milestone machine that opened the door to the modern supersport era. It was also a machine that was loved by many fans for many years, with sales continuing for 19 years from the start of sales in 1984 to the end of sales in 2003.

Technology developed by Yamaha to model the human voice and perform the human voice as an electronic musical instrument. Vocaloid technology was made public by Yamaha and a variety of Vocaloid software was sold by various companies. In Japan, Vocaloid songs, illustrations and videos of secondary creation became so popular that they could be described as a social phenomenon, and the technology has come to be fully recognised as a part of Japanese culture.

A very popular vocaloid that reproduces the human voice on a computer, marketed by Clapton Future Media. She is characterised by her green hair and twin-tail hairstyle. Her voice is modelled by voice actress Saki Fujita. The songs sung by Hatsune Miku have become very popular and many derivative works such as videos and illustrations continue to be created.