ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,834, issued on March 25, was assigned to Seiko Epson Corp. (Tokyo).
"Liquid discharge device and wiring substrate" was invented by Toru Kashimura (Nagano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge device in which an inter-wiring region between a first wiring through which a first drive signal, and a second wiring through which a second drive signal propagates includes a wide inter-wiring region in which an inter-wiring distance between the first wiring and the second wiring is larger than a sum of a wire width of a fourth wiring and a minimum diameter of a via wiring, and a narrow inter-wiring region in which the inter...