ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,484, issued on Aug. 26, was assigned to THE JAPAN STEEL WORKS LTD. (Tokyo).

"Resin intrusion prevention structure, injection device, and injection molding machine" was invented by Yousuke Shimoaka (Tokyo), Kiyotaka Nakayama (Tokyo) and Masahiko Taketani (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A resin intrusion prevention structure for preventing resin intrusion into a heater in a shut-off nozzle, the shut-off nozzle including a nozzle body having an injection flow path, through which resin flows, in an axial direction and a shut-off valve configured to open and block the injection flow path. The resin intrusion prevention structure is ...