ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,270, issued on Nov. 4, was assigned to Seiko Epson Corp. (Tokyo).
"Liquid ejecting apparatus and filling method" was invented by Hidenori Sokabe (Shiojiri, Japan), Hiroyuki Hagiwara (Matsumoto, Japan) and Shun Katsuie (Matsumoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejecting apparatus includes a common liquid chamber communicating with nozzles, a filter partitioning the common liquid chamber into an upstream chamber and a downstream chamber, an inlet and an outlet for the upstream chamber, a liquid storage section, a supply flow path, and a recovery flow path. A beam portion is provided inside the downstream chamber. A pressu...