US Patent Issued to TWENTY FOUR HOURS INTERNATIONAL on April 14 for "Flexible lead-free piezoelectric composite film and preparation method thereof, and electronic device" (Singaporean, Chinese Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,664, issued on April 14, was assigned to TWENTY FOUR HOURS INTERNATIONAL PTE. LTD. (Paya Lebar, Singapore).

"Flexible lead-free piezoelectric composite film and preparation method thereof, and electronic device" was invented by Junhua Chen (Paya Lebar, Singapore) and Xiaosong Zhang (Tianjin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing a flexible lead-free piezoelectric composite film, in which a rare-earth-doped SrSbxSc2-xTaCl2O8 precursor powder is prepared and coated with a BaTiO3 shell to form core-shell nanoparticles, and the core-shell nanoparticles are dispersed in a polyvinylidene fluoride (PVDF) matrix to obt...