ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,914, issued on May 19, was assigned to Parker Netsushori Kogyo Co. Ltd. (Tokyo).

"Processing method and processing apparatus for metal component" was invented by Yasushi Hiraoka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is a processing method for a metal component by using a processing furnace. The method includes the steps of: introducing an activation atmospheric gas into the processing furnace; heating the activation atmospheric gas in the processing furnace to a first temperature; introducing a nitriding atmospheric gas or a nitrocarburizing atmospheric gas into the processing furnace; and heating the nitriding a...