US Patent Issued to SCREEN Holdings on Sept. 8 for "Printing apparatus and printing method" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,645, issued on Sept. 8, was assigned to SCREEN Holdings Co. Ltd. (Kyoto, Japan).

"Printing apparatus and printing method" was invented by Hideaki Onishi (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The return pump which feeds the ink from the collection tank to the supply tank is provided, and the differential pressure generation assistance to feed the ink from the collection tank to the return pipe by the return liquid feeder is performed concurrently with the execution of the printing differential pressure generation. In the collection tank, the volume of the air layer above the gas-liquid interface is thereby expanded, to thereby ...