Sumitomo Bank
Proper noun referring to the former Sumitomo Bank, a major Japanese financial institution that merged into Sumitomo Mitsui Banking Corporation in 2001. Still encountered in historical contexts.
Sumitomo Bank merged with Sakura Bank in 2001.
Sumitomo Mitsui Banking Corporation, the successor entity formed after the merger of Sumitomo Bank and Sakura Bank.
From 住友 (Sumitomo, the family name of the founding zaibatsu) + 銀行 (bank).