Trademark Act Article 64

Identity of trademarkActual use of a registered trademark by the proprietor in a form differing in elements which do not affect the identity of the trademark according to general concepts in the society shall constitute use of the registered trademark.
中文原文 商標法第64條
商標權人實際使用之商標與註冊商標不同,而依社會一般通念並不失其同一性者,應認為有使用其註冊商標。

English translation for reference only; the Chinese text prevails. Not legal advice.