ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,599, issued on June 17, was assigned to CANON K.K. (Tokyo).
"Toner" was invented by Miki Ueda (Tokyo), Takeshi Hashimoto (Ibaraki, Japan), Kazuki Murata (Tokyo), Megumi Shino (Chiba, Japan), Yukihiro Abe (Chiba, Japan) and Hayato Ida (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprising a toner particle containing a binder resin and an inorganic fine particle, wherein the binder resin contains a crystalline resin, the crystalline resin has a first monomer unit represented by the following formula (1), the inorganic fine particle is at least one inorganic fine particle selected from the group consisting of a particle conta...