US Patent Issued to 3M Innovative Properties on Jan. 13 for "Sound absorbing material and method of producing sound absorbing material" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,215, issued on Jan. 13, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Sound absorbing material and method of producing sound absorbing material" was invented by Akira Ito (Tokyo) and Keisuke Sawamoto (Kanagawa-ken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sound absorbing material according to an embodiment is a sound absorbing material (1) absorbing sound from a component, the sound absorbing material including a rising portion (4) rising from an attachment portion P to which the sound absorbing material (1) is attached, and an opposing portion (5) opposing the component on a side of the rising portion (4) opposite t...