US Patent Issued to OSAKA SEALING PRINTING on Sept. 1 for "Heat-sensitive recording medium" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,411, issued on Sept. 1, was assigned to OSAKA SEALING PRINTING Co. LTD. (Osaka, Japan).

"Heat-sensitive recording medium" was invented by Hidenobu Harima (Osaka, Japan) and Yusuke Egashira (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose of the present invention is to provide a heat-sensitive recording medium which hardly causes safety concerns such as endocrine disrupting chemicals, and is excellent in chromogenic properties and light resistance, and also excellent in heat resistance. A heat-sensitive recording medium (1) has a configuration in which a heat-sensitive recording layer (3) is layered on a substrate (2). The hea...