Olympus Corp. will brief its creditor banks and other financial institutions Wednesday about the maker's coverup of past securities investment losses, according to the banks.

The banks, which include Mizuho Financial Group Inc., Mitsubishi UFJ Financial Group Inc. and Sumitomo Mitsui Financial Group Inc., said Monday they plan to study what steps to take in the future based on the briefing as well as the outcome of the probe by a third-party panel set up by the company.

Mizuho Bank, which has credited loans of tens of billions of yen to Olympus, has lowered its assessment of the loans from "normal," according to Mizuho Financial Group President Yasuhiro Sato.