ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,767, issued on Sept. 30, was assigned to SEIKO EPSON Corp. (Japan).
"Method of determining ejection state" was invented by Atsushi Toyofuku (Shiojiri, Japan) and Toshiro Murayama (Fujimi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of determining an ejection state of a liquid ejecting head having a plurality of nozzles that are arrayed in a second direction intersecting a first direction and from which liquid is ejected in the first direction includes: an acquiring step of acquiring a plurality of positional information items by capturing, at a plurality of timings, images of droplets ejected from the plurality of nozzles; and a d...