Tang name was not used in a formal Iki (a letter of appointment) in Jimoku (ceremony for appointing officials) of Chotei (Imperial Court) and the like, however, often used in private documents such as letters, diaries, and Chinese-style poems.
唐名は、除目における朝廷の正式な位記等に記されることこそは無かったが、書簡・日記・漢詩など私的な文書には頻繁に用いられた。