US Patent Issued to SEIKO EPSON on Sept. 1 for "Drive circuit board and liquid ejection apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,371, issued on Sept. 1, was assigned to SEIKO EPSON Corp. (Japan).

"Drive circuit board and liquid ejection apparatus" was invented by Dai Nozawa (Matsumoto, Japan) and Noritaka Ide (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive circuit board includes a first driver circuit configured to output a first drive signal, a first switching element configured to output a first switching signal, a second driver circuit configured to output a second drive signal, a second switching element configured to output a second switching signal corresponding to the first switching signal, and a smoothing circuit configured to output a drive s...