ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,421, issued on May 27, was assigned to CANON K.K. (Tokyo).

"Apparatus including a plurality of heads and a method of using the same" was invented by Byung-Jin Choi (Austin, Texas) and Anshuman Cherala (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus can include a support structure and a docking station, wherein the apparatus is configured to move the docking station relative to the support structure. The apparatus can further include a head among a plurality of heads. The apparatus can also include a first coupler configured to couple the head to the support structure and to decouple the head from the support structure and ...