ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,768, issued on May 20, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).

"Sheet conveyance device and image forming system" was invented by Yoshihiro Ando (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sheet conveyance device includes a cover member, a sheet stacking tray, a control portion, and an optical sensor. The cover member has a stationary rib that enters and retreats from an optical path along with opening and closing of the cover member, and a swingable rib that enters and retreats from the optical path along with up-down movement of the sheet on the sheet stacking tray. The control portion, based on an amount...