Synthetic bone

NanOssTM is engineered synthetic bone and is the first material that duplicates the microstructure, composition and performance of human bone. Utilizing nanotechnology, calcium and phosphate are manipulated at the molecular level and assembled to produce materials with unique structural and functional properties not seen before in other calcium phosphate based materials.

Structural NanOss. A 100% dense, highly consistent, crystalline hydroxyapatite or tricalcium phosphate that has nearly the strength of stainless steel. Based on Angstrom's unique ability to combine strength with controlled resorption, NanOss implants will provide the gold-standard benefits of autograft with the strength found in metal or composite devices. Initial applications for the material include suture anchors, ACL/PCL interference screws and interbody fusion cages for spinal surgery.

http://www.angstrommedica.com/technology/default.htm

Japan-Tokyo

Tokyo is Japan's capital and the country's largest city.
Tokyo is also one of Japan's 47 prefectures, but is called a metropolis (to) rather than a prefecture (ken). The metropolis of Tokyo consists of 23 city wards (ku), 26 cities, 5 towns and 8 villages, including the Izu and Ogasawara Islands, several small Pacific Islands in the south of Japan's main island Honshu.
The 23 city wards (ku) are the center of Tokyo and make up about one third of the metropolis' area, while housing roughly eight of Tokyo's approximately twelve million residents.