Fujisawa Pharmaceutical (now Astellas Pharma)
Historical company name; the company merged with Yamanouchi Pharmaceutical in 2005 to form Astellas Pharma. Used in historical or business contexts.
Fujisawa Pharmaceutical merged with Yamanouchi Pharmaceutical in 2005 to become Astellas Pharma.
Astellas Pharma is the current company formed from the merger of Fujisawa Pharmaceutical and Yamanouchi Pharmaceutical.
Named after the Fujisawa location and the pharmaceutical industry; no further etymological breakdown is available.