ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,838, issued on Dec. 30, was assigned to CANON K.K. (Tokyo).
"Toner and two-component developer" was invented by Kentaro Kamae (Kanagawa, Japan), Yuu Nishimura (Chiba, Japan), Hisasuke Kajihara (Ibaraki, Japan), Takaho Shibata (Tokyo) and Maki Imura (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toner including a toner particle containing a binder resin containing an amorphous polyester A and a crystalline polyester C, and a wax, and a silica fine particle, wherein the content of the crystalline polyester C is within a specific range, the softening point of the amorphous polyester A satisfies a specific relationship, and in an X-ra...