No difference.

The circle R is the mark of "registered trademark", which means that the trademark has been applied for registration at the National Trademark Office and has been reviewed and approved by the Trademark Office, becoming a registered trademark. trademark. The R in the circle is the first letter of English register.

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.

The use of TM means the trademark symbol, that is, the words, graphics or symbols marked with TM are trademarks, but they are not necessarily registered (unregistered ones are not protected by law). TM is the abbreviation of English trademark.

The correct writing method should be an R in the middle of the small circle in the upper right corner, and the word TM in the upper right corner. Due to limitations of the software or interface, there may be various other writing methods.