ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,818, issued on April 29, was assigned to FURUYA METAL Co. LTD. (Tokyo).
"Method for producing metal cylinder material, and backing jig used therein" was invented by Genki Ano (Tokyo), Tomohiro Maruko (Tokyo), Tomoaki Miyazawa (Tokyo) and Yuichi Iwamoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing the metal cylinder material according to the present disclosure includes: a process A of forming a slitted cylinder-shaped body including at least one slit extending from one end face to the other end face of a cylinder barrel portion consisting of at least one metal plate material; a process B of forming a filler-equipped cyl...