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Canon requests removal of toner cartridges from Amazon.com, including Toner Bank brand cartridges sold by Inkqueen

TOKYO, December 11, 2025—Canon Inc. today announced that it has reported to Amazon that certain toner cartridges sold on Amazon infringe Canon’s patents and requested the removal of such listings from Amazon.com.

In its reports to Amazon, Canon identified, among others, the product offerings shown in the table below and alleged that the cartridges sold under these offerings infringe Canon’s U.S. Patent No. 12,321,128. Canon requested that Amazon remove these product offerings from Amazon.com.

At the time of this announcement, the product offerings listed above were no longer available on Amazon.com.

Canon engages in extensive research and development so that it can deliver innovative and valuable products to customers all over the world. Through its research and development efforts, Canon has obtained a large and robust portfolio of patents. In order to protect its many innovations, Canon enforces its patents against various toner cartridge designs that Canon believes infringe its patent rights.

Throughout the development, sales and marketing process, Canon respects the intellectual property of other companies and individuals and expects others to similarly respect Canon’s intellectual property rights. Canon remains committed to pursuing legal enforcement against those who do not respect Canon’s intellectual property.