ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,674, issued on March 17, was assigned to Canon K.K. (Tokyo).
"Toner cartridge, toner supplying mechanism and shutter" was invented by Yosuke Kashiide (Tokyo) and Takashi Kimura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to a first aspect of the present invention, there is provided a toner cartridge detachably mountable to a receiving device, the toner cartridge comprising a container including a accommodating portion for accommodating the toner and a discharge opening for discharging the toner from the accommodating portion into the receiving device; and an open/close member including a closing portion for closing the discharge...