ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,052, issued on June 23, was assigned to Sumitomo Riko Co. Ltd. (Aichi, Japan).
"Tubular antivibration device" was invented by Masaya Hattori (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tubular antivibration device includes an inner axial member and an outer tubular member that are joined by an elastic rubber main body. The inner axial member is provided with a pair of groove-shaped recesses that open on the outer peripheral surface on both sides in the lateral direction and extend in the vertical direction, and the elastic rubber main body is integrally provided with a pair of upper and lower first elastic joining parts that join ...