ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,663, issued on May 27, was assigned to RICOH COMPANY LTD. (Tokyo).
"Liquid discharge head, liquid discharge device, and liquid discharge apparatus" was invented by Kazuto Nagahashi (Kanagawa, Japan), Takuma Hirabayashi (Tokyo), Keishi Miwa (Kanagawa, Japan) and Yukimasa Matsuda (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes a piezoelectric element configured to vibrate; a damper configured to reduce vibration energy generated by the piezoelectric element; a first substrate joined to the damper, the first substrate having a first space facing one surface of the damper vibrates; a second substrate oppo...