US Patent Issued to RICOH on March 3 for "Piezoelectric actuator, liquid discharge head, and liquid discharge apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,043, issued on March 3, was assigned to RICOH COMPANY LTD. (Tokyo).

"Piezoelectric actuator, liquid discharge head, and liquid discharge apparatus" was invented by Takuma Hirabayashi (Tokyo) and Kaname Morita (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 one face on the substrate in a first direction, the diaphragm facing the opening; a lower electrode on another face of the diaphragm opposite to the one face of the diaphragm in the first direction; a piezoelectric body on the lower electrode in the first direction; and an upper electrode on the pi...