ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,943, issued on April 29, was assigned to SCREEN HOLDINGS Co. LTD. (Kyoto, Japan).

"Printing system and defective nozzle detection method" was invented by Keiji Hatano (Kyoto, Japan), Satoru Kiyohara (Kyoto, Japan) and Yusaku Ikeda (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A printing system including a printing unit and an imaging unit is provided with: a defect detection unit that detects a defect included in a captured image; a defective nozzle position candidate extraction unit that extracts N position candidates as candidates for a position of a defective nozzle based on the position of the defect; a first correction unit that p...