ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,605, issued on March 31, was assigned to Seiko Epson Corp. (Tokyo).

"Recording device and recording method" was invented by Shunichi Aoyagi (Shiojiri, Japan) and Tetsuya Matsumura (Suwa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A recording device, when n is an integer of 3 or more, controls a recording head to record n test patters from which a shift amount is acquirable between a scan and a scan different from each other on a medium in a main scanning direction, at least three test pattern is formed by a plurality of patches recorded by a plurality of scans, the n test patterns are formed so as to be different from each other in positi...