ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,795, issued on July 21, was assigned to CANON K.K. (Tokyo).
"Toner" was invented by Yoshiaki Shiotari (Shizuoka, Japan), Takashi Kenmoku (Shizuoka, Japan), Shohei Kototani (Shizuoka, Japan) and Mayumi Inoue (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprising a toner particle, wherein the toner particle comprises a toner core particle, and the toner core particle comprises a binder resin; the binder resin comprises a resin A; the resin A comprises a monomer unit M1 having a specific structure in a specific amount, and a monomer unit M2 comprising an organosilicon polymer segment in a specific amount; the organosilicon p...