ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,453, issued on Sept. 9, was assigned to ZHUHAI YANQI TECHNOLOGY Co. LTD. (Zhuhai, China).
"Developing cartridge" was invented by Yu Zhu (Zhuhai, China) and Ying Wang (Zhuhai, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A developing cartridge includes a developing frame, a developing roller, a first drive force receiving member, and a first end cover. The first drive force receiving member is configured to receive a driving force to drive the rotation of the developing roller. The developing cartridge further includes a conductive assembly and a first voltage control member. The conductive assembly is capable of switching internally between...