If the word Kaiwei has been registered as a trademark, using it as a signboard will infringe on the exclusive right to use the trademark. If not, there is no infringement.

The shop signboard is a brand that attracts business, and it is an intuitive characteristic sign that the shop is engaged in business activities, and the name of the shop signboard will also be infringed.

misappropriation or fraudulent use of well-known brand names and shop names is infringement.