ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,658, issued on Oct. 21, was assigned to THE JAPAN STEEL WORKS LTD. (Tokyo).
"Shut-off nozzle, injection device, and injection molding machine" was invented by Kiyotaka Nakayama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shut-off nozzle includes a nozzle body portion having an in-nozzle flow path formed therein, and a needle valve that is inserted into the nozzle body portion coaxially with the nozzle body portion and is configured to open and close an outlet of the in-nozzle flow path. A cylindrical portion is formed in the vicinity of a tip portion of the needle valve. A cylindrical hole portion is formed in the vicinity of a tip porti...