ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,287, issued on Aug. 26, was assigned to Canon K.K. (Tokyo).
"Ink jet recording method and ink jet recording apparatus" was invented by Satoshi Takebayashi (Tokyo), Yoshitaka Torisaka (Tokyo), Ryo Tsujii (Tokyo), Nao Ishijima (Kanagawa, Japan), Yuko Negishi (Tokyo) and Eiichi Nakata (Kanagawa, Japan).
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 pigment dispersed by the action of a carboxylic acid group, a resin particle and a wa...