[Japan's First Digital Bank, Minna Bank, Signs Partnership Agreement with Crypto Exchange Backpack] According to The Block, cryptocurrency exchange Backpack has signed a partnership agreement with Minna Bank, Japan's first digital bank. The two companies will leverage Backpack's on-chain infrastructure to explore cryptocurrency-related digital banking services in Japan. Minna Bank is a subsidiary of Fukuoka Financial Group (FFG), one of Japan's regional banking groups.