ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,175, issued on July 22, was assigned to SEIKO EPSON Corp. (Japan).
"Liquid discharge apparatus and capacitive load drive circuit" was invented by Noritaka Ide (Shiojriri, Japan), Kunio Tabata (Shiojiri, Japan) and Shoichiro Yokoo (Matsumoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge apparatus includes a liquid discharge head that includes a plurality of capacitive loads driven by being supplied with a drive signal and discharges a liquid by driving the plurality of capacitive loads, and a capacitive load drive circuit, in which the capacitive load drive circuit includes a correction circuit, a modulation circuit, an amp...