ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,587, issued on April 14, was assigned to DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY (Daegu, South Korea).

"Piezoelectric element and method for manufacturing piezoelectric element" was invented by Kyung In Jang (Incheon, South Korea), Ho Hyun Keum (Seoul, South Korea) and Jun Woo Yea (Daegu, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a piezoelectric element and a method for manufacturing a piezoelectric element. The disclosure provides the piezoelectric element comprising: a base layer, a piezoelectric layer which is disposed on one surface of the base layer, and in which upwardly curved convex porti...