ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,533, issued on Feb. 10, was assigned to PFU Ltd. (Kahoku, Japan).

"Medium conveying apparatus for detecting a folding of a medium" was invented by Kiichiro Shimosaka (Kahoku, Japan) and Masato Shimura (Kahoku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A medium conveying apparatus includes a first optical sensor located on an upper part of the housing and in a central part of the housing in a direction perpendicular to a medium conveying direction, a second optical sensor located on an upper part of the housing and on a side of the first optical sensor in the direction perpendicular to the medium conveying direction, and a processor to det...