September 17, 2020
Canon Inc.

Canon files new toner cartridge-related patent infringement lawsuit against Ninestar in U.S.

TOKYO, September 17, 2020—Canon today announced the filing of a complaint in the U.S. District Court for the Central District of California against Ninestar Corporation, Ninestar Image Tech Limited, and Ninestar Technology Company, Ltd. (collectively, "Ninestar"), for infringement of Canon's U.S. Patent Nos. 9,851,688; 9,857,766; 10,620,582; 10,712,709; and 10,712,710.

As set forth in the complaint, Ninestar sells toner cartridges that infringe Canon's patents for use in various models of Canon and HP laser beam printers. These include printers which accept Canon toner cartridge models 729 and HP toner cartridge models 126A and 130A. Ninestar sells the infringing toner cartridges online, including through Ninestar websites such as,, and/or Canon is seeking damages and injunctive relief.

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.