US Patent Issued to Seiko Epson on July 28 for "Head unit and liquid ejecting apparatus" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,681, issued on July 28, was assigned to Seiko Epson Corp. (Tokyo).

"Head unit and liquid ejecting apparatus" was invented by Masayuki Kawakami (Matsumoto, Japan), Kenichi Oe (Matsumoto, Japan) and Shunsuke Kasai (Minowa-machi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A head unit includes: a print head that ejects the liquid by receiving a logic signal and the drive signal; and a temperature information output circuit that outputs the temperature information signal indicating a temperature of the print head, in which the print head includes: a piezoelectric element driven by receiving the drive signal; a pressure chamber substrate provide...