ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,005, issued on March 17, was assigned to SUMITOMO RIKO COMPANY Ltd. (Komaki, Japan).
"Fluid-filled vibration damping device" was invented by Junichi Nozaki (Komaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid-filled vibration damping device including: a pressure-receiving chamber; an equilibrium chamber; a partition partitioning the two chambers while including a communication aperture connecting the two chambers; and a rubber elastic plate arranged in the partition while covering the communication aperture. The rubber elastic plate includes: an outside contact-retainer part provided partially along a circumference at an outer edge...