ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,692, issued on Aug. 18, was assigned to Canon K.K. (Tokyo).
"Ink jet recording method and ink jet recording apparatus" was invented by Ryo Tsujii (Tokyo), Hideki Yamakami (Kanagawa, Japan) and Satoshi Takebayashi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an ink jet recording method for recording an image on a recording medium with an aqueous ink and an aqueous reaction liquid containing a reactant that reacts with the aqueous ink. The aqueous ink contains a coloring material that is dispersed by the action of an anionic group. The aqueous reaction liquid contains a water-soluble cationic resin having a structure of a qu...