The circle R is the mark of "registered trademark", which means that the trademark has been applied for registration with the National Trademark Office and has been reviewed and approved by the Trademark Office to become a registered trademark. The R in the circle is the first letter of English register. The initial letter "R" of the registered trademark "Registered Trademark", in some cases (such as some technical instructions or in computer self-test programs) does not include a circle, but directly adds parentheses on both sides of R, that is (R) . Internationally, TM (Trademark Trademark) is usually added after the word of an unregistered trademark to facilitate distinction.

Registered trademarks have the characteristics of exclusivity, exclusivity, and uniqueness. They are exclusively owned by the owner of the registered trademark and are protected by law. No enterprise or individual may use it without the permission or authorization of the owner of the registered trademark. , otherwise you will bear infringement liability.