US Patent Issued to SEIKO EPSON on April 21 for "Liquid discharge head, liquid discharge apparatus, and nozzle substrate" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,932, issued on April 21, was assigned to SEIKO EPSON Corp. (Japan).

"Liquid discharge head, liquid discharge apparatus, and nozzle substrate" was invented by Shohei Mizuta (Matsumoto, Japan), Akira Miyagishi (Shiojiri, Japan), Toshiro Murayama (Fujimi, Japan) and Madoka Ito (Matsumoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes a first nozzle and a second nozzle, the first nozzle includes a first downstream nozzle portion opened on a discharge surface of a nozzle substrate and a first upstream nozzle portion of which a cross-sectional area is larger than a cross-sectional area of the first downstream nozzl...