ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,389, issued on Aug. 4, was assigned to Mitsubishi Chemical Corp. (Tokyo).

"Sound-insulating sheet member and sound-insulating structure provided with same" was invented by Kazuma Inoue (Tokyo), Takahiro Komamura (Tokyo), Yuya Saito (Tokyo) and Takeshi Matsuoka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a sound-insulating sheet member capable of being installed in a location with a limited installation space and allowing for insulation of low-frequency sound, and a sound-insulating structure body including the sound-insulating sheet member. A sound-insulating sheet member including a sheet portion having rubber elasticity, and a ...