ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,561, issued on March 3, was assigned to TOYOBO Co. LTD. (Osaka, Japan).

"Heat-shrinkable polyester-based film, heat-shrinkable label, and packaging body" was invented by Masayuki Haruta (Tsuruga, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a heat-shrinkable polyester-based film which has a high heat shrinkage ratio in the main shrinkage direction, as well as a high film puncture strength, bag breakage resistance upon bottle dropping, and excellent stiffness because of the high density of the film. The heat-shrinkable polyester-based film contains 60-95 mol % ethylene terephthalate units in 100 mol % of all ester units...