ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,836, issued on June 23, was assigned to Seiko Epson Corp. (Tokyo).
"Maintenance method for discharge unit" was invented by Tatsuya Teramoto (Shiojiri, Japan) and Taki Hashimoto (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a maintenance method for a discharge unit which has a nozzle hole and plasticizes a material containing a thermoplastic resin to generate a plasticized material. This maintenance method includes a heating step of heating a material or a plasticized material present in a flow path which communicates with a nozzle hole and through which the material or the plasticized material passes at a temperature eq...