US Patent Issued to Shibaura Machine on March 17 for "Foam molding method, control method for injection molding machine for foam molding, and injection molding machine for foam molding" (Japanese Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,566, issued on March 17, was assigned to Shibaura Machine Co. Ltd. (Chiyoda-ku, Japan).

"Foam molding method, control method for injection molding machine for foam molding, and injection molding machine for foam molding" was invented by Nobuyuki Asanuma (Numazu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A foam molding method includes: moving a screw backward to take air into a heating barrel through a nozzle part in a state in which a shut-off nozzle is opened, the shut-off nozzle that opens or closes the nozzle part for injecting the molten resin and is disposed on a heating barrel; closing the shut-off nozzle and moving the screw forwa...