ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,151, issued on March 24, was assigned to THE JAPAN STEEL WORKS LTD. (Tokyo).

"Gas supply device, injection molding machine, and foam molding method" was invented by Akihiro Naito (Tokyo) and Takuya Yufu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An injection device (2) of an injection molding machine (1) includes a heating cylinder (18) having a gas introduction port (30) and a screw (19), and a gas supply device (5) is connected to the gas introduction port (30). The gas supply device (5) includes a gas supply source (33) and a gas pressure regulating unit (34). The gas pressure regulating unit (34) regulates a gas pressure and supplies...