US Patent Issued to Toyota Motor Engineering & Manufacturing North America, Toyota Jidosha on April 7 for "Sound absorbing devices for panels with openings" (Michigan Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,408, issued on April 7, was assigned to Toyota Motor Engineering & Manufacturing North America Inc. (Plano, Texas) and Toyota Jidosha K.K. (Toyota, Japan).

"Sound absorbing devices for panels with openings" was invented by Taehwa Lee (Ann Arbor, Mich.), Xiaopeng Li (Ann Arbor, Mich.) and Ziqi Yu (Ann Arbor, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sound absorbing device includes a panel with an opening, a duct extending from the panel and in fluid communication with the opening, and a plurality of acoustic resonators embedded in the panel and in fluid communication with the duct. The duct can have a rectangular cuboid shape and the plu...