1. Other people's trademark names have become the common and unique names of the corresponding products; In this case, because it has become a common or unique name of goods, it is no longer significant, and the Trademark Law also stipulates that you can apply to declare a registered trademark invalid. In this case, there is no infringement problem.
2. The trademark name does not violate the prohibitive provisions of the Trademark Law; If the trademark name has not become the common name of the product due to improper use, and the exclusive right to use the trademark is still within the legal protection period, it constitutes infringement.
Legal basis: Article 10 14 of the Civil Code of People's Republic of China (PRC). No organization or individual may infringe upon the name right of others by interference, embezzlement or counterfeiting.