ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,821, issued on May 6, was assigned to OJI HOLDINGS Corp. (Tokyo).
"Heat-sealable paper and packaging bag" was invented by Tomofumi Isozaki (Tokyo), Yasutomo Noishiki (Tokyo), Masahiro Tsuruhara (Tokyo), Yuta Shamoto (Tokyo) and Miyoko Tanaka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to provide heat-sealable paper that is excellent in impact resistance and workability. Provided is heat-sealable paper comprising at least one heat-sealable layer on at least one surface of a paper substrate, wherein in the paper substrate, when a tensile energy absorption in a vertical direction as measured in accordance with JIS P 8113:2006 is ...