The Imperial Household (å 廷çÂÂæÂ Naitei kà Âzoku, also known as the Inner court), is the term for the Emperor of Japan's direct family and includes the Empress, the Empress dowager, the Grand Empress Dowager, the Imperial Crown Prince, (çÂÂ太åÂÂ, kà Âtaishi, the heir to the throne who is son of the current Emperor), and the Imperial Crown Princess (çÂÂ太åÂÂå¦Â, kà Âtaishihi, the wife of the Imperial Crown Prince), and any unmarried children of the above.
Currently Prince Fumihito holds the title of kà Âshi (çÂÂå£) as he is not the son of the current emperor, thus is not part of the Imperial household. His wife, Princess Kiko, currently holds the title kà Âshihi (çÂÂå£å¦Â), as she is the wife of the crown prince, and not the wife of the Imperial Crown Prince. Princess Abe is the only woman to have held the title Imperial Crown Prince in her own right.
The Empress Emerita, based on the Emperor Abdication Law, is considered an equivalent to Empress Dowager (a title she will receive should her husband predecease her). The Emperor and Emperor Emeritus are usually excluded from this.
During the Taishà  era, the Imperial Household comprised the following:
During the Shà Âwa era, the Imperial Household comprised the following:
During the Heisei era, the Imperial Household comprised the following:
These are the current members of the Imperial Household:
Despite Akihito's abdication, Michiko is still part of the Imperial Household. Should Akihito die before her, Michiko would become Empress Dowager.
The imperial family of Japan is split into the following branches: