RIKEN’s Nishina Center for Accelerator Research, under group leader Kosuke MORITA, had announced the discovery of element 113 on Dec. 31st, 2015, and IUPAC, after certification of the discovery, had offered the right of naming to the discoverers. After public deliberation by IUPAC, their proposition was accepted to name element 113 „Nihonium“ (Nh)

RIKEN news release, November 30, 2016