This is the "Outline of the Bank of Japan" page on the website of the "Bank of Japan" which issues our Japanese money.
They clearly says "The Bank of Japan is not owned by the Government of Japan".
You will probably find similar words on the website of the bank that issues money in your country.
Please check THE BANK that issue MONEY in your country.
You will find that the bank issuing your country's currency has disguised itself as if it were a national bank by putting your country's name in the bank's name.