ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,612, issued on Aug. 12, was assigned to TOYO SEIKAN Co. LTD. (Tokyo).
"Microwavable pouch" was invented by Takashi Miura (Yokohama, Japan), Shie Matsunaga (Yokohama, Japan) and Reina Tokairin (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a microwavable pouch having a rectangular outer shape in plan view. The microwavable punch includes an automatic steam release mechanism. The automatic steam release mechanism includes a steam release portion and a steam release seal portion surrounding the steam release portion, and assuming that there is an inscribed ellipse in contact with centers of inner edges of sides of a periphe...