ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,547,091, issued on Feb. 10, was assigned to CANON K.K. (Tokyo).
"Toner" was invented by Naoya Isono (Shizuoka, Japan), Takayuki Toyoda (Shizuoka, Japan), Hirofumi Kyuushima (Tokyo), Tomoya Nagaoka (Tokyo) and Masao Suzuki (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toner comprising a toner particle comprising a binder resin, wherein the toner particle further comprises a monohydric aliphatic alcohol, and an anionic surfactant having an alkyl group, the binder resin comprises a polyester resin, a carbon number of the monohydric aliphatic alcohol is 8 to 18, a content of the monohydric aliphatic alcohol when extracted from the toner ...