Ucode developed by YRP Ubiquitous Networking Laboratory presided by Ken Sakamura of Tokyo University was adopted by International Telecommunications Union as the world standard. With the ucode technology, it is possible to allocate universal serial numbers (ID numbers) to all objects and locations worldwide and identify them on the Internet. Ucode is composed of figures, and there are 2 powered by 128 ucodes, meaning that nearly an infinite numbers of ucodes are available.
IC tags and bar codes with a built-in ucode that are allocated to industrial and agricultural products can be identified by a terminal identifies, and the information can be retrieved via the Internet. It is strongly expected that ucode will be widespread for such purposes as logistics and sightseeing. It is free to use the ucode, but users have to pay the operating cost to uiD Center. The annual usage fee is 100,000 yen for 48 bits that is equivalent to 281 trillion pieces. At present, 10 million ucodes are used by companies and organizations. Taiwan and Finland decided to introduce ucode.