The brief guide to banks in Japan includes the major banks in Japan, including local banks and international banks having branches in Japan.
Many Japan banks have ATM'S (automatic teller machine), enabling you to draw foreign currency while you stay in Japan.
If you open a bank account in one of Japan's banks, you are advised to compare commission rates for money transfer to and from Japan.
In most of the banks in Japan you will find a few English speaking employees, the best chance is in the foreign exchange section of the bank.
Most of Japan banks in this site have an English web site.