- go to a local bank, get the required documents for opening a bank account and ask what they need from the City Hall
- get your personal hanko/inkan (in Japan you sign with your personal stamp, your signature is not valid, except for signing creditcard receipts, haha how ironic)
- register yourself at your local City Hall, take a Japanese friend with you (a "counter for foreigners" might imply that they speak English - yeah you wish...)
- a permanent address in order to get registered
- some Yen to pay for the stamped documents
- lots of patience
That's not true. I opened bank accounts in different Japanese banks and all I needed was my "gaikokujin torokusho" and
nothing more (not even the passport). Some banks will ask for a hanko, but by explaining that you don't have one as a foreigner, they will make you sign instead. It also didn't cost anything to open the accounts and all was done in about 5 minutes (each time, at different banks). In Europe, it once took me one hour to open a bank account !