ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,291, issued on May 12, was assigned to EBARA Corp. (Tokyo).

"Powder supply apparatus and AM apparatus using a powder supply apparatus" was invented by Hiroyuki Shinozaki (Tokyo) and Junki Asai (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A powder supply apparatus including a container store for storing powder therein, a supply passage for supplying powder to the container, and a valve mechanism that opens and closes the supply passage. The valve mechanism includes a valve main body movable between a first and second position, and a valve seat configured so that the valve main body is seated thereon. The valve main body includes first and sec...