if a registered trademark has not been used in Japan for more than three years, the registration is easily affected by the cancellation request made by a third party based on non-use. Anyone can make a cancellation request for non-use. The responsibility for using the certificate shall be borne by the registrant. You can make a non-use cancellation request for all designated goods or some goods in the registration. According to this provision, if the person who made the cancellation request can prove that the registrant knew that the cancellation procedure might be filed, it is not a defense to use the trademark within three months before making the cancellation request. Therefore, you can seek the transfer of the trademark from the trademark owner who has not yet used the trademark. If the transfer of the trademark cannot be negotiated within 3 months,