ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,298, issued on Jan. 20, was assigned to Canon K.K. (Tokyo).
"Printing apparatus, control method, and storage medium" was invented by Masaya Uetsuki (Kanagawa, Japan) and Yosuke Ishii (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A printing apparatus includes: a printing unit configured to eject a color material ink and a reaction liquid; a controller configured to control the printing unit such that the printing unit prints a first test pattern in which a plurality of patches are arranged; a first obtaining unit configured to obtain an optical density for each of the plurality of patches; a second obtaining unit configured to obtai...