US Patent Issued to FUJIFILM on Oct. 20 for "Piezoelectric film" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,772,741, issued on Oct. 20, was assigned to FUJIFILM Corp. (Tokyo).

"Piezoelectric film" was invented by Yoshinori Tamada (Minamiashigara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a piezoelectric film which is capable of suppressing a decrease in acoustic characteristics associated with use of a long period of time and has high durability. The piezoelectric film includes a piezoelectric layer consisting of a polymer-based piezoelectric composite material which contains piezoelectric particles in a matrix containing a polymer material and electrode layers formed on both surfaces of the piezoelectric layer, in which, in a case wher...