US Patent Issued to SEIKO EPSON on May 27 for "Piezoelectric element, head chip, liquid ejection device, and sensor" (Japanese Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,664, issued on May 27, was assigned to SEIKO EPSON Corp. (Japan).

"Piezoelectric element, head chip, liquid ejection device, and sensor" was invented by Yasuaki Hamada (Chino, Japan), Yoshiki Yano (Chino, Japan), Kazuya Kitada (Matsumoto, Japan) and Koji Ohashi (Matsumoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric element according to the present disclosure includes: a first electrode; a piezoelectric layer formed at an upper part of the first electrode; and a second electrode formed at an upper part of the piezoelectric layer, in which the piezoelectric layer contains potassium, sodium, and niobium, and a Young's modulus ...