"区立学校一覧". Chuo City. Retrieved 2022-10-08. - There is a Nihonbashi Elementary School, but the page lists ("日本橋") under Joto (城東) elementary. "通学区域" means school attendance boundary (comes up as "school district" on Google Translate)
"FAQ." Takeda Pharmaceutical Company. Retrieved on February 2, 2011. "Q : Where is Takeda located? A : [...] and the Tokyo Head Office is located in Tokyo, Japan."
"Overview." Takeda Pharmaceutical Company. Retrieved on February 2, 2011. "Tokyo Head Office 12-10, Nihonbashi 2-chome, Chuo-ku, Tokyo 103-8668"