US Patent Issued to DENSO, TOYOTA JIDOSHA, MIRISE Technologies on June 17 for "Piezoelectric film layered structure and method for producing thereof" (Japanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,336,434, issued on June 17, was assigned to DENSO Corp. (Kariya, Japan), TOYOTA JIDOSHA K.K. (Toyota, Japan) and MIRISE Technologies Corp. (Nisshin, Japan).

"Piezoelectric film layered structure and method for producing thereof" was invented by Akihiko Teshigahara (Nisshin, Japan) and Tetsuya Enomoto (Nisshin, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric film layered structure includes a base, and a ScAlN film formed on the base. The ScAlN film has an unpaired electron density within a range between 1.7x1018 electrons/cm3, inclusive, and 1.1x1019 electrons/cm3, inclusive."

The patent was filed on Dec. 20, 2021, under Application...