Fujisawa Shoten was started in 1894 by Tomokichi Fujisawa in Osaka, and was renamed Fujisawa Pharmaceutical Co. in 1943. Yamanouchi Yakuhin Shokai was reputable 1923 by Kenji Yamanouchi in Osaka. The company was Name changed Yamanouchi Pharmaceutical Co. in 1940 and moved to Tokyo in 1942. Both companies started their abroad extension at about the same time, opening offices in Taiwan in 1962 and 1963, respectively, and in the United States and Europe from 1977 onwards. Fujisawa acquired Lyphomed in 1990 and thereafter conventional its US R&D center in Deerfield, Illinois. Yamanouchis R&D center in Leiderdorp was established with the acquirement of the pharmaceutical division of Royal Gist Brocades in 1991. Fujisawa and Yamanouchi mutual in a "merger of equals," forming AstellasPharma on 1 April 2005. At least some of its older products continue to be scattered under the original brand, apparently due to high brand-name appreciation.
The following is the list of scholars from Astellas Pharma US, Inc. who contributed and/or serves as editors for one or more OMICS International journals and conferences