The nature INDEX published special articles on scientific collaborations in Tokyo beyond universities or research institutes. Professor Yasuhiro Kato of the Department of Systems Innovation has been conducting a progressive research on deep-sea mineral resources for rare-earth elements together with researchers from the Tokyo Institute of Technology and the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). Their collaborative work was featured by the article.
nature INDEX : http://www.natureindex.com/news-blog/new-data-reveals-universities-in-tokyo-are-highly-connected