ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,382,225, issued on Aug. 5, was assigned to FUJIFILM Corp. (Tokyo).
"Electroacoustic conversion film and electroacoustic converter" was invented by Jumpei Ishida (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an electroacoustic conversion film and an electroacoustic converter which are capable of suppressing a decrease in piezoelectric conversion efficiency in a case of use in a high-temperature environment. The electroacoustic conversion film is an electroacoustic conversion film including a polymer-based piezoelectric composite material which contains piezoelectric particles in a matrix containing a polymer material, and el...