US Patent Issued to RISO Technologies on April 21 for "Liquid ejection head" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,929, issued on April 21, was assigned to RISO Technologies Corp. (Tokyo).

"Liquid ejection head" was invented by Takashi Tozuka (Sunto Shizuoka, Japan) and Minoru Koyata (Mishima Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a liquid ejection head includes a substrate with an opening through which a first liquid can pass. An actuator is on a first side of the substrate and has a plurality of pressure chambers. A manifold is on a second side of the substrate. The manifold forms a first flow path for a second fluid. The liquid ejection head has first electrode with portions formed on an upper surface of t...