US Patent Issued to HITACHI INDUSTRIAL EQUIPMENT SYSTEMS on Dec. 2 for "Inkjet recording device and inkjet recording method" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,671, issued on Dec. 2, was assigned to HITACHI INDUSTRIAL EQUIPMENT SYSTEMS Co. LTD. (Tokyo).

"Inkjet recording device and inkjet recording method" was invented by Akira Maeda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inkjet recording device automatically determines an excitation voltage of a piezoelectric element for formation of ink droplets. An excitation voltage value is applied to the piezoelectric element of a nozzle over a plurality of sweeping events. A charge voltage is applied to ink droplets generated by the applied excitation voltage value in a plurality of arbitrary printing phases to give an electric charge thereto. A cha...