Mitsui Bank, Ltd. (三井銀行, Mitsui Ginkō) was a major Japanese bank from 1876 to 1990. The home bank of the Mitsui conglomerate, it was one of the largest Japanese banks for much of the 20th century, together with Dai-Ichi Bank, Mitsubishi Bank, Sumitomo Bank, and Yasuda / Fuji Bank.[1] In 1943 it merged with Dai-Ichi Bank to form Teikoku Bank (Japanese: 帝国銀行, lit. 'Imperial Bank'). In 1948, Dai-Ichi Bank was spun off again from Teikoku, which changed its name back to Mitsui Bank in 1954.[2]
In 1990, Mitsui Bank merged with Taiyo Kobe Bank to form Mitsui Taiyo Kobe Bank (MTKB), which was renamed Sakura Bank in April 1992 and was a predecessor entity of Sumitomo Mitsui Banking Corporation (SMBC).