US Patent Issued to THE JAPAN STEEL WORKS on Sept. 1 for "Injection molding machine for foam molding" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,332, issued on Sept. 1, was assigned to THE JAPAN STEEL WORKS LTD. (Tokyo).

"Injection molding machine for foam molding" was invented by Akihiro Naito (Tokyo) and Takuya Yufu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An injection molding machine for foam molding includes: a heating cylinder; a screw disposed in the heating cylinder; and a plurality of inlet portions provided in the heating cylinder and configured to introduce inert gas. An inside of the heating cylinder includes a starvation section on an upstream side in which a pressure of the resin is decreased, and the inert gas from the plurality of inlet portions being to be suppli...