well, "Japanese coin" can be called "nihon no KOIN" (caps for katakana, lowercase for hiragana or kanji). However, the Japanese unit of currency involves coins which hold 5, 10, 50, 100, and 500 yen (en in Japanese) in value.
On one side of the Japanese coins currently in circulation is written the value (in yen) of the coin and the year the coin was made. Except for the 5-yen coin, the value is written in Arabic numerals. On all coins the year is written in the Japanese style, with the name of the then-current Emperor's reign name and the year of the reign (e.g., 平成十二年 for Heisei Year 2, or the second year of the reign of the [as of mid-2012] current Emperor, year 2 being 1990). On the 5-yen coin, the value of the coin is written in the Chinese character for "five," viz. 五).
On the other side of the coin is written the value of the coin in Chinese characters and 日本国, or something to the effect of "Japan."
The ¥500 yen coin made until 1989 additionally had "Nippon Ginkou" (or "Ginko") (i.e., "Bank of Japan") etched in Roman letters along the edge. The new ¥500 coin has instead of the Roman letters a series of parallel scores.
The Japanese yen
The Japanese coin that has a square hole in it is the 5 yen coin. The design of the coin includes a central cutout that is square-shaped. The 5 yen coin is made out of a lightweight metal and has a unique design compared to other Japanese coins.
yen
The Japanese ¥1 coin weighs very close to 1g
500
This coin is a Japanese 100 Yen coin featuring cherry blossoms. Minting began in 1967.
In Japanese it sounds like "go-en", which also has the same pronunciation as destiny.
It may be a Japanese 50 Yen coin minted since 1959. You might also try a library for a copy of the Standard Catalog of World Coins for pictures, values and lots more interesting info.
The Japanese 5 Yen coin is the second smallest coin in the Japanese currency. As at 24-Dec-2010, 5 yen could be exchanged for about - $0.06 AUD £0.04 GBP $0.06 USD
Many of the coins are valued in price close to $18 each, The amount will vary depending upon the condition of the coin.
100$ if you have a 1995 yi yuan Japanese coin
Japanese coins are in "yen" (unit of currency).The smaller denominations were the "sen" (1/100 yen) and "rin" (1/1000 yen).
a qua is actually a word... a qua is some sort of Japanese coin And There Is Quail or Quails