Takashi Nagai was a physician specializing in radiology, a convert to Catholicism, and a survivor of the atomic bombing of Nagasaki, Japan. His subsequent life of prayer and service earned him the affectionate title "saint of Urakami". Wikipedia
The definitive Wikipedia entry for Takashi Nagai. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Takashi_Nagai