US Patent Issued to Ricoh on Nov. 3 for "Laser treatment of printhead surfaces" (California Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,852, issued on Nov. 3, was assigned to Ricoh Co. Ltd. (Tokyo).

"Laser treatment of printhead surfaces" was invented by Hiroshi Nishimura (West Hills, Calif.), Giang Vo (Simi Valley, Calif.) and Nasser Budraa (La Crescenta, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Laser treatment on surfaces of a printhead. In an embodiment, a printhead comprises an assembly of structural elements each comprising a metal substrate. The structural elements form a plurality of jetting channels and a manifold fluidly coupled to the jetting channels, and the jetting channels and the manifold have internal surfaces internal to the printhead configured to conta...