US Patent Issued to SEIKO EPSON on April 29 for "Liquid ejecting head and liquid ejecting apparatus" (Japanese Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,954, issued on April 29, was assigned to SEIKO EPSON Corp. (Japan).

"Liquid ejecting head and liquid ejecting apparatus" was invented by Hiromu Miyazawa (Azumino, Japan) and Kinya Ozawa (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejecting head includes a nozzle that is in communication with a pressure chamber and ejects a first liquid, a passage formation substrate that has a liquid passage which extends from a common liquid chamber in communication with a plurality of pressure chambers to the nozzle and through which the first liquid flows, and a circulation passage that is formed in the passage formation substrate, pass...