Government of Japan
The Current Emperor of Japan (今上天皇) is Akihito. He was officially enthroned on November 12, 1990. He is styled as "His Imperial Majesty" (天皇陛下), and his reign bears the era name of Heisei (平成). Naruhito, the Crown Prince of Japan, is the heir apparent to the Chrysanthemum Throne.
1 yen coin
The following are circulation dates which cover Emperor Hirohito's reign. The dates below correspond with the 30th to the 64th year (last) of his reign. Coins for this period will all begin with the Japanese symbol 昭和 (Shōwa).The following are circulation dates in the reign of the current Emperor. Akihito was crowned in 1989, which is marked with a 元 symbol on the coin as a one year type. Coins for this period all begin with the Japanese symbol 平成 (Heisei). One-yen coins dated between 2011 and 2013 were only released in mint sets. Although regular production resumed in 2014, the mintage was again halted in 2016 as exclusive to mint sets only.