ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,837, issued on June 23, was assigned to NISSEI PLASTIC INDUSTRIAL Co. LTD. (Nagano-Ken, Japan).
"Injection molding method and injection molding machine" was invented by Hirofumi Murata (Hanishina-gun, Japan), Toshimi Kato (Hanishina-gun, Japan) and Hozumi Yoda (Hanishina-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Mold clamping conditions, including a predetermined mold gap, a predetermined mold clamping force, a predetermined back pressure for a movable mold, a predetermined mold closing pressure, and a predetermined mold closing pressure adjustment condition associated with the compression state of a molding material, are set beforeh...