ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,867, issued on Nov. 3, was assigned to CANON K.K. (Tokyo).

"Liquid discharge apparatus" was invented by Koji Suda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge apparatus includes an estimation unit that estimates, as an estimated usage amount, an amount of a liquid discharged by a recording head during a certain period. The estimation unit calculates a first correction value for correcting the estimated usage amount based on a first difference that is a difference between a first amount and a second amount, the estimated usage amount, and a second difference between the first difference and the estimated usage amount. There...