US Patent Issued to RICOH on Feb. 24 for "Piezoelectric actuator, liquid discharge head, and liquid discharge apparatus" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,893, issued on Feb. 24, was assigned to RICOH COMPANY LTD. (Tokyo).

"Piezoelectric actuator, liquid discharge head, and liquid discharge apparatus" was invented by Keishi Miwa (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric actuator includes: a substrate having an opening; a diaphragm: having a first face on one face of the substrate; and facing the opening; and a piezoelectric element including: a lower electrode; a piezoelectric body; and an upper electrode, and the lower electrode, the piezoelectric body, and the upper electrode being sequentially laminated on a second face opposite to the first face of the diaphra...