Japanese Yen (JPY; ¥) is the official currency of Japan and the bank notes where first introduced in 1872 two years after the currency was introduced.
The denominations for Japan banknotes are 1000, 2000, 5000, 10000 although the 2000 notes which are readily available from banks are very unpopular and less likely to be used and seen in general circulation. The 2000 note was introduced in the year 2000 to commemorate the G8 summit of that year and seen as a novelty note by most Japanese.
So how much cash do you need in Japan? FOOD and DRINK – Can of drink 130 yen Cup of coffee 100-400 yen, Can of beer 200 yen 1/2 liter of mineral water 120 yen Bowl of Japanese noodles 300-700 yen Breakfast service in a coffee shop 400-700 yen Big Mac 350yen.