CNN  —  When you think of Tokyo, you might think of neon-lit skyscrapers and its world-famous bullet train system, or films like “Akira” and “Ghost in the Shell” that depict a futuristic Japan filled with intelligent robots and holograms. But there’s a more mundane side of Japan that you won’t find anywhere in these cyberpunk films. It involves fax machines, floppy disks and personalized ink stamps – relics that have long died out in other advanced nations but have stubbornly persisted in Japan.